Charles Handy is an Irish

Ireland

Ireland is an island to the northwest of continental Europe. It is the third-largest island in Europe and the twentieth-largest island on Earth...

 author/philosopher specialising in organisational behaviour and management

Management

Management in all business and organizational activities is the act of getting people together to accomplish desired goals and objectives using available resources efficiently and effectively...

. Among the ideas he has advanced are the "portfolio worker" and the "Shamrock Organization

Shamrock Organization

Shamrock Organization is an organizational structure where a core of essential executives and workers are supported by outside contractors and part-time help. The shamrock leaf shape is a symbolic representation of an organization with three types of workforce, having a main body and connected...

" (in which professional core workers, freelance workers and part-time/temporary routine workers each form one leaf of the "Shamrock").

He has been rated among the Thinkers 50, a private list of the most influential living management thinkers.