Library of Congress Classification:Class B -- Philosophy, Psychology, Religion
Encyclopedia
Class B: Philosophy, Psychology, Religion is a classification used by the Library of Congress Classification
Library of Congress Classification
The Library of Congress Classification is a system of library classification developed by the Library of Congress. It is used by most research and academic libraries in the U.S. and several other countries; for example, Australia and Taiwan, R.O.C. It is not to be confused with the Library of...

 system. This article outlines the subclasses of Class B.

B - Philosophy
Philosophy
Philosophy is the study of general and fundamental problems, such as those connected with existence, knowledge, values, reason, mind, and language. Philosophy is distinguished from other ways of addressing such problems by its critical, generally systematic approach and its reliance on rational...

 (General)

  • 69-99..........General works
  • 108-5802.......By period (including individual philosophers and schools of philosophy)
    • 108-708.......Ancient
      Ancient philosophy
      This page lists some links to ancient philosophy. In Western philosophy, the spread of Christianity through the Roman Empire marked the ending of Hellenistic philosophy and ushered in the beginnings of Medieval philosophy, whereas in Eastern philosophy, the spread of Islam through the Arab Empire...

    • 720-765.......Medieval
      Medieval philosophy
      Medieval philosophy is the philosophy in the era now known as medieval or the Middle Ages, the period roughly extending from the fall of the Western Roman Empire in the fifth century AD to the Renaissance in the sixteenth century...

    • 770-785.......Renaissance
      Renaissance philosophy
      Renaissance philosophy was the period of the history of philosophy in Europe that falls roughly between the Middle Ages and the Enlightenment. It includes the 15th century; some scholars extend it to as early as the 1350s or as late as the 16th century or early 17th century, overlapping the...

    • 790-5802......Modern
      Modern philosophy
      Modern philosophy is a type of philosophy that originated in Western Europe in the 17th century, and is now common worldwide. It is not a specific doctrine or school , although there are certain assumptions common to much of it, which helps to distinguish it from earlier philosophy.The 17th and...

      • 808-849........Special topics and schools of philosophy
      • 850-5739......By region or country
      • 5800-5802....By religion

BC - Logic
Logic
In philosophy, Logic is the formal systematic study of the principles of valid inference and correct reasoning. Logic is used in most intellectual activities, but is studied primarily in the disciplines of philosophy, mathematics, semantics, and computer science...

  • 11-39......History
    • 25-39.....By Period
  • 60-99......General works
  • 171-199....Special topics

BD - Speculative philosophy

  • 10-41..........General philosophical works
  • 95-131.........Metaphysics
    Metaphysics
    Metaphysics is a branch of philosophy concerned with explaining the fundamental nature of being and the world, although the term is not easily defined. Traditionally, metaphysics attempts to answer two basic questions in the broadest possible terms:...

  • 143-237........Epistemology. Theory of knowledge
  • 240-260........Methodology
    Methodology
    Methodology is generally a guideline for solving a problem, with specificcomponents such as phases, tasks, methods, techniques and tools . It can be defined also as follows:...

  • 300-450........Ontology
    Ontology
    Ontology is the philosophical study of the nature of being, existence or reality as such, as well as the basic categories of being and their relations...

     (including being, the soul
    Soul
    A soul in certain spiritual, philosophical, and psychological traditions is the incorporeal essence of a person or living thing or object. Many philosophical and spiritual systems teach that humans have souls, and others teach that all living things and even inanimate objects have souls. The...

    , life
    Life
    Life is a characteristic that distinguishes objects that have signaling and self-sustaining processes from those that do not, either because such functions have ceased , or else because they lack such functions and are classified as inanimate...

    , death
    Death
    Death is the permanent termination of the biological functions that sustain a living organism. Phenomena which commonly bring about death include old age, predation, malnutrition, disease, and accidents or trauma resulting in terminal injury....

    )
  • 493-701........Cosmology
    Cosmology
    Cosmology is the discipline that deals with the nature of the Universe as a whole. Cosmologists seek to understand the origin, evolution, structure, and ultimate fate of the Universe at large, as well as the natural laws that keep it in order...

     (including teleology
    Teleology
    A teleology is any philosophical account which holds that final causes exist in nature, meaning that design and purpose analogous to that found in human actions are inherent also in the rest of nature. The word comes from the Greek τέλος, telos; root: τελε-, "end, purpose...

    , space and time, structure of matter, plurality of worlds)

1-990 - Psychology
Psychology
Psychology is the study of the mind and behavior. Its immediate goal is to understand individuals and groups by both establishing general principles and researching specific cases. For many, the ultimate goal of psychology is to benefit society...

  • 38-64..........Philosophy. Relation to other topics
  • 173-175.5......Psychoanalysis
    Psychoanalysis
    Psychoanalysis is a psychological theory developed in the late 19th and early 20th centuries by Austrian neurologist Sigmund Freud. Psychoanalysis has expanded, been criticized and developed in different directions, mostly by some of Freud's former students, such as Alfred Adler and Carl Gustav...

  • 176-176.5......Psychological tests and testing
  • 180-198.7......Experimental psychology
    Experimental psychology
    Experimental psychology is a methodological approach, rather than a subject, and encompasses varied fields within psychology. Experimental psychologists have traditionally conducted research, published articles, and taught classes on neuroscience, developmental psychology, sensation, perception,...

  • 203............Gestalt psychology
    Gestalt psychology
    Gestalt psychology or gestaltism is a theory of mind and brain of the Berlin School; the operational principle of gestalt psychology is that the brain is holistic, parallel, and analog, with self-organizing tendencies...

  • 207-209........Psychotropic drugs and other substances
  • 231-299........Sensation. Aesthesiology
  • 309-499........Consciousness
    Consciousness
    Consciousness is a term that refers to the relationship between the mind and the world with which it interacts. It has been defined as: subjectivity, awareness, the ability to experience or to feel, wakefulness, having a sense of selfhood, and the executive control system of the mind...

    . Cognition
    Cognition
    In science, cognition refers to mental processes. These processes include attention, remembering, producing and understanding language, solving problems, and making decisions. Cognition is studied in various disciplines such as psychology, philosophy, linguistics, and computer science...

     (including learning
    Learning
    Learning is acquiring new or modifying existing knowledge, behaviors, skills, values, or preferences and may involve synthesizing different types of information. The ability to learn is possessed by humans, animals and some machines. Progress over time tends to follow learning curves.Human learning...

    , attention
    Attention
    Attention is the cognitive process of paying attention to one aspect of the environment while ignoring others. Attention is one of the most intensely studied topics within psychology and cognitive neuroscience....

    , comprehension, memory
    Memory
    In psychology, memory is an organism's ability to store, retain, and recall information and experiences. Traditional studies of memory began in the fields of philosophy, including techniques of artificially enhancing memory....

    , imagination
    Imagination
    Imagination, also called the faculty of imagining, is the ability of forming mental images, sensations and concepts, in a moment when they are not perceived through sight, hearing or other senses...

    , genius
    Genius
    Genius is something or someone embodying exceptional intellectual ability, creativity, or originality, typically to a degree that is associated with the achievement of unprecedented insight....

    , intelligence, thought
    Thought
    "Thought" generally refers to any mental or intellectual activity involving an individual's subjective consciousness. It can refer either to the act of thinking or the resulting ideas or arrangements of ideas. Similar concepts include cognition, sentience, consciousness, and imagination...

     and thinking, psycholinguistics
    Psycholinguistics
    Psycholinguistics or psychology of language is the study of the psychological and neurobiological factors that enable humans to acquire, use, comprehend and produce language. Initial forays into psycholinguistics were largely philosophical ventures, due mainly to a lack of cohesive data on how the...

    , mental fatigue)
  • 501-505........Motivation
    Motivation
    Motivation is the driving force by which humans achieve their goals. Motivation is said to be intrinsic or extrinsic. The term is generally used for humans but it can also be used to describe the causes for animal behavior as well. This article refers to human motivation...

  • 511-593........Affection
    Affection
    Affection or fondness is a "disposition or rare state of mind or body" that is often associated with a feeling or type of love. It has given rise to a number of branches of philosophy and psychology concerning: emotion ; disease; influence; state of being ; and state of mind...

    . Feeling
    Feeling
    Feeling is the nominalization of the verb to feel. The word was first used in the English language to describe the physical sensation of touch through either experience or perception. The word is also used to describe experiences, other than the physical sensation of touch, such as "a feeling of...

    . Emotion
    Emotion
    Emotion is a complex psychophysiological experience of an individual's state of mind as interacting with biochemical and environmental influences. In humans, emotion fundamentally involves "physiological arousal, expressive behaviors, and conscious experience." Emotion is associated with mood,...

  • 608-635........Will
    Will (philosophy)
    Will, in philosophical discussions, consonant with a common English usage, refers to a property of the mind, and an attribute of acts intentionally performed. Actions made according to a person's will are called "willing" or "voluntary" and sometimes pejoratively "willful"...

    . Volition
    Volition
    Volition may refer to:*Volition , the cognitive process by which an individual decides on and commits to a particular course of action...

    . Choice. Control
  • 636-637........Applied psychology
    Applied psychology
    The basic premise of applied psychology is the use of psychological principles and theories to overcome problems in other areas, such as mental health, business management, education, health, product design, ergonomics, and law...

  • 638-648........New Thought
    New Thought
    New Thought promotes the ideas that "Infinite Intelligence" or "God" is ubiquitous, spirit is the totality of real things, true human selfhood is divine, divine thought is a force for good, sickness originates in the mind, and "right thinking" has a healing effect.Although New Thought is neither...

    . Menticulture, etc.
  • 660-685........Comparative psychology
    Comparative psychology
    Comparative psychology generally refers to the scientific study of the behavior and mental processes of non-human animals. However, scientists from different disciplines do not always agree on this definition...

    . Animal and human psychology
  • 692-692.5......Psychology of sex. Sexual behavior
  • 697-697.5......Differential psychology. Individuality. Self
    Self (psychology)
    The psychology of self is the study of either the cognitive and affective representation of one's identity or the subject of experience. The earliest formulation of the self in modern psychology derived from the distinction between the self as I, the subjective knower, and the self as Me, the...

  • 698-698.9......Personality
    Personality psychology
    Personality psychology is a branch of psychology that studies personality and individual differences. Its areas of focus include:* Constructing a coherent picture of the individual and his or her major psychological processes...

  • 699-711........Genetic psychology
  • 712-724.85.....Developmental psychology
    Developmental psychology
    Developmental psychology, also known as human development, is the scientific study of systematic psychological changes, emotional changes, and perception changes that occur in human beings over the course of their life span. Originally concerned with infants and children, the field has expanded to...

     (including infant psychology, child psychology, adolescence
    Adolescence
    Adolescence is a transitional stage of physical and mental human development generally occurring between puberty and legal adulthood , but largely characterized as beginning and ending with the teenage stage...

    , adulthood)
  • 795-839........Temperament
    Temperament
    In psychology, temperament refers to those aspects of an individual's personality, such as introversion or extroversion, that are often regarded as innate rather than learned...

    . Character
    Moral character
    Moral character or character is an evaluation of a particular individual's durable moral qualities. The concept of character can imply a variety of attributes including the existence or lack of virtues such as integrity, courage, fortitude, honesty, and loyalty, or of good behaviors or habits...

  • 839.8-885......Physiognomy
    Physiognomy
    Physiognomy is the assessment of a person's character or personality from their outer appearance, especially the face...

    . Phrenology
    Phrenology
    Phrenology is a pseudoscience primarily focused on measurements of the human skull, based on the concept that the brain is the organ of the mind, and that certain brain areas have localized, specific functions or modules...

  • 889-905........Graphology
    Graphology
    Graphology is the pseudoscientific study and analysis of handwriting, especially in relation to human psychology. In the medical field, it can be used to refer to the study of handwriting as an aid in diagnosis and tracking of diseases of the brain and nervous system...

    . Study of handwriting
    Handwriting
    Handwriting is a person's particular & individual style of writing with pen or pencil, which contrasts with "Hand" which is an impersonal and formalised writing style in several historical varieties...

  • 908-940........The hand
    Hand
    A hand is a prehensile, multi-fingered extremity located at the end of an arm or forelimb of primates such as humans, chimpanzees, monkeys, and lemurs...

    . Palmistry

1001-1389 - Parapsychology
Parapsychology
The term parapsychology was coined in or around 1889 by philosopher Max Dessoir, and originates from para meaning "alongside", and psychology. The term was adopted by J.B. Rhine in the 1930s as a replacement for the term psychical research...

  • 1001-1045......Psychic
    Psychic
    A psychic is a person who professes an ability to perceive information hidden from the normal senses through extrasensory perception , or is said by others to have such abilities. It is also used to describe theatrical performers who use techniques such as prestidigitation, cold reading, and hot...

     research. Psychology of the conscious
  • 1048-1108......Hallucinations. Sleep
    Sleep
    Sleep is a naturally recurring state characterized by reduced or absent consciousness, relatively suspended sensory activity, and inactivity of nearly all voluntary muscles. It is distinguished from quiet wakefulness by a decreased ability to react to stimuli, and is more easily reversible than...

    . Dream
    Dream
    Dreams are successions of images, ideas, emotions, and sensations that occur involuntarily in the mind during certain stages of sleep. The content and purpose of dreams are not definitively understood, though they have been a topic of scientific speculation, philosophical intrigue and religious...

    ing. Visions.
  • 1111-1156......Hypnotism. Suggestion. Mesmerism. Subliminal projection
  • 1161-1171......Telepathy
    Telepathy
    Telepathy , is the induction of mental states from one mind to another. The term was coined in 1882 by the classical scholar Fredric W. H. Myers, a founder of the Society for Psychical Research, and has remained more popular than the more-correct expression thought-transference...

    . Mind reading
    Mind reading
    Mind reading may refer to:* Telepathy, the transfer of information between individuals by means other than the five senses* The illusion of telepathy in the performing art of mentalism...

    . Thought transference
  • 1228-1389......Spiritualism
    Spiritualism
    Spiritualism is a belief system or religion, postulating the belief that spirits of the dead residing in the spirit world have both the ability and the inclination to communicate with the living...

     (including mediumship, spirit messages, clairvoyance
    Clairvoyance
    The term clairvoyance is used to refer to the ability to gain information about an object, person, location or physical event through means other than the known human senses, a form of extra-sensory perception...

    )

1404-2055 - Occult science
Occult science
Occult science is the systematic research into or formulation of occult concepts in a manner that follows - in its method or presentation - the way natural science researches or describes phenomena of the physical world....

s

  • 1444-1486......Ghost
    Ghost
    In traditional belief and fiction, a ghost is the soul or spirit of a deceased person or animal that can appear, in visible form or other manifestation, to the living. Descriptions of the apparition of ghosts vary widely from an invisible presence to translucent or barely visible wispy shapes, to...

    s. Apparitions. Hauntings
  • 1501-1562......Demonology
    Demonology
    Demonology is the systematic study of demons or beliefs about demons. It is the branch of theology relating to superhuman beings who are not gods. It deals both with benevolent beings that have no circle of worshippers or so limited a circle as to be below the rank of gods, and with malevolent...

    . Satanism
    Satanism
    Satanism is a group of religions that is composed of a diverse number of ideological and philosophical beliefs and social phenomena. Their shared feature include symbolic association with, admiration for the character of, and even veneration of Satan or similar rebellious, promethean, and...

    . Possession
    Spiritual possession
    Spirit possession is a paranormal or supernatural event in which it is said that spirits, gods, demons, animas, extraterrestrials, or other disincarnate or extraterrestrial entities take control of a human body, resulting in noticeable changes in health and behaviour...

  • 1562.5-1584....Witchcraft
    Witchcraft
    Witchcraft, in historical, anthropological, religious, and mythological contexts, is the alleged use of supernatural or magical powers. A witch is a practitioner of witchcraft...

  • 1585-1623......Magic
    Magic (paranormal)
    Magic is the claimed art of manipulating aspects of reality either by supernatural means or through knowledge of occult laws unknown to science. It is in contrast to science, in that science does not accept anything not subject to either direct or indirect observation, and subject to logical...

    . Hermetics
    Hermetics
    Hermetics is the deliberate use of exceedingly obscure, convoluted, or esoteric literary or graphical symbolism and imagery....

    . Necromancy
    Necromancy
    Necromancy is a claimed form of magic that involves communication with the deceased, either by summoning their spirit in the form of an apparition or raising them bodily, for the purpose of divination, imparting the ability to foretell future events or discover hidden knowledge...

  • 1651-1729......Astrology
    Astrology
    Astrology consists of a number of belief systems which hold that there is a relationship between astronomical phenomena and events in the human world...

  • 1745-1779......Oracle
    Oracle
    In Classical Antiquity, an oracle was a person or agency considered to be a source of wise counsel or prophetic predictions or precognition of the future, inspired by the gods. As such it is a form of divination....

    s. Sibyl
    Sibyl
    The word Sibyl comes from the Greek word σίβυλλα sibylla, meaning prophetess. The earliest oracular seeresses known as the sibyls of antiquity, "who admittedly are known only through legend" prophesied at certain holy sites, under the divine influence of a deity, originally— at Delphi and...

    s. Divination
    Divination
    Divination is the attempt to gain insight into a question or situation by way of an occultic standardized process or ritual...

    s
  • 1783-1815......Seers. Prophet
    Prophet
    In religion, a prophet, from the Greek word προφήτης profitis meaning "foreteller", is an individual who is claimed to have been contacted by the supernatural or the divine, and serves as an intermediary with humanity, delivering this newfound knowledge from the supernatural entity to other people...

    s. Prophecies
    Prophecy
    Prophecy is a process in which one or more messages that have been communicated to a prophet are then communicated to others. Such messages typically involve divine inspiration, interpretation, or revelation of conditioned events to come as well as testimonies or repeated revelations that the...

  • 1845-1891......Fortune-telling
    Fortune-telling
    Fortune-telling is the practice of predicting information about a person's life. The scope of fortune-telling is in principle identical with the practice of divination...

  • 2050-2055......Human-alien encounters. Contact between humans and extraterrestrial
    Extraterrestrial life
    Extraterrestrial life is defined as life that does not originate from Earth...

    s.

1-1725 - Ethics
Ethics
Ethics, also known as moral philosophy, is a branch of philosophy that addresses questions about morality—that is, concepts such as good and evil, right and wrong, virtue and vice, justice and crime, etc.Major branches of ethics include:...

  • 71-1185.........History and general works. (Including individual ethical philosophers.)
  • 1188-1295.......Religious ethics
  • 1298-1335.......Evolutionary and genetic ethics
  • 1365-1385.......Positivist ethics
  • 1388............Socialist ethics
  • 1390-1390.5.....Communist ethics
  • 1392............Totalitarian ethics
  • 1395............Feminist ethics
  • 1518-1697.......Individual ethics. Character. Virtue
    Virtue ethics
    Virtue ethics describes the character of a moral agent as a driving force for ethical behavior, rather than rules , consequentialism , or social context .The difference between these four approaches to morality tends to lie more in the way moral dilemmas are...

    . (Including practical and applied ethics
    Applied ethics
    Applied ethics is, in the words of Brenda Almond, co-founder of the Society for Applied Philosophy, "the philosophical examination, from a moral standpoint, of particular issues in private and public life that are matters of moral judgment"...

    , conduct of life, vices, success, ethics for children.)
  • 1725............Ethics of social groups, classes, etc. Professional ethics.

1801-2195 - Social usages. Etiquette
Etiquette
Etiquette is a code of behavior that delineates expectations for social behavior according to contemporary conventional norms within a society, social class, or group...

.

  • 2021-2078.......Etiquette of entertaining
  • 2139-2156.......Etiquette of travel
  • 2195............Telephone etiquette

BL - Religion
Religion
Religion is a collection of cultural systems, belief systems, and worldviews that establishes symbols that relate humanity to spirituality and, sometimes, to moral values. Many religions have narratives, symbols, traditions and sacred histories that are intended to give meaning to life or to...

s. Mythology
Mythology
The term mythology can refer either to the study of myths, or to a body or collection of myths. As examples, comparative mythology is the study of connections between myths from different cultures, whereas Greek mythology is the body of myths from ancient Greece...

. Rationalism
Rationalism
In epistemology and in its modern sense, rationalism is "any view appealing to reason as a source of knowledge or justification" . In more technical terms, it is a method or a theory "in which the criterion of the truth is not sensory but intellectual and deductive"...

  • 1-50...................Religion
    Religion
    Religion is a collection of cultural systems, belief systems, and worldviews that establishes symbols that relate humanity to spirituality and, sometimes, to moral values. Many religions have narratives, symbols, traditions and sacred histories that are intended to give meaning to life or to...

     (General)
  • 51-65..................Philosophy of religion
    Philosophy of religion
    Philosophy of religion is a branch of philosophy concerned with questions regarding religion, including the nature and existence of God, the examination of religious experience, analysis of religious language and texts, and the relationship of religion and science...

    . Psychology of religion
    Psychology of religion
    Psychology of religion consists of the application of psychological methods and interpretive frameworks to religious traditions, as well as to both religious and irreligious individuals. The science attempts to accurately describe the details, origins, and uses of religious beliefs and behaviours...

    . Religion in relation to other subjects.
  • 70-71..................Sacred books (General)
  • 71.5-73................Biography
  • 74-99..................Religions of the world.
  • 175-265................Natural Theology
  • 270....................Unity and plurality
  • 290....................The soul
  • 300-325................The myth
    Mythology
    The term mythology can refer either to the study of myths, or to a body or collection of myths. As examples, comparative mythology is the study of connections between myths from different cultures, whereas Greek mythology is the body of myths from ancient Greece...

    . Comparative mythology
  • 350-385................Classification of religions
  • 410....................Religions in relation to one another
  • 425-490................Religious doctrines (General)
  • 500-547................Eschatology
  • 550-619................Worship. Cultus.
  • 624-629.5..............Religious life.
  • 630-(632.5)............Religious organization
  • 660-2680...............History and principles of religions
  • 2700-2790..............Rationalism

BM - Judaism
Judaism
Judaism ) is the "religion, philosophy, and way of life" of the Jewish people...

  • 1-449..........General
  • 480-488.8..........Pre-Talmudic Jewish literature (non-Biblical)
  • 495-532..........Sources of Jewish religion. Rabbinical literature
  • 497-509..........Talmudic literature
  • 534-538..........Relation of Judaism to special subject fields
  • 545-582..........Principles of Judaism (General)
  • 585-585.4..........Controversial works against the Jews
  • 590-591..........Jewish works against Christianity and Islam
  • 600-645..........Dogmatic Judaism
  • 646..........Heresy, heresies
  • 648..........Apologetics
  • 650-747..........Practical Judaism
  • 750-755..........Biography
  • 900-990..........Samaritans

BR - Christianity
Christianity
Christianity is a monotheistic religion based on the life and teachings of Jesus as presented in canonical gospels and other New Testament writings...

  • 1-1725......Christianity
    • 60-67......Early Christian literature. Fathers of the Church, etc.
    • 115......Christianity in relation to special subjects
    • 130-133.5......Christian antiquities. Archaeology. Museums
    • 140-1510......History
      • 160-481......By period
        • 160-275......Early and medieval
        • 280......Renaissance. Renaissance and Reformation
        • 290-481......Modern period
          • 323.5-334.2......Luther, Martin
    • 500-1510......By region or country
    • 1600-1609......Persecution. Martyrs
    • 1609.5......Dissent
    • 1610......Tolerance and toleration
    • 1615-1617......Liberalism
    • 1620......Sacrilege (History)
    • 1690-1725......Biography

BS
Library of Congress Classification:Class B, subclass BS -- The Bible
Subclass BS: The Bible is a classification used by the Library of Congress Classification system under Class B -- Philosophy, Psychology, Religion. This article describes subclass BS.-Contents:BS...

 - The Bible
Bible
The Bible refers to any one of the collections of the primary religious texts of Judaism and Christianity. There is no common version of the Bible, as the individual books , their contents and their order vary among denominations...

BT
Library of Congress Classification:Class B, subclass BT -- Doctrinal Theology
Subclass BT: Doctrinal Theology is a classification used by the Library of Congress Classification system under Class B -- Philosophy, Psychology, Religion. This article describes subclass BT.-Contents:BT...

 - Doctrinal Theology

BV
Library of Congress Classification:Class B, subclass BV -- Practical Theology
Subclass BV: Practical Theology is a classification used by the Library of Congress Classification system under Class B -- Philosophy, Psychology, Religion. This article describes subclass BV.-Contents:BV...

 - Practical Theology
Practical theology
Practical theology is the practical application of theology to everyday life. Richard Osmer explains that the four key questions and tasks in practical theology are:# What is going on? # Why is this going on?...

BX
Library of Congress Classification:Class B, subclass BX -- Christian Denominations
Subclass BX: Christian Denominations is a classification used by the Library of Congress Classification system under Class B -- Philosophy, Psychology, Religion. This article describes subclass BX.-Contents:...

 - Christian Denominations

Sources

Library of Congress Classification Outline

Further reading

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