The Invisible College refers mainly to the intrinsic ideology of the free transfer of thought and technical expertise, usually carried out without the establishment of designated facilities or authority structure, spread by a loosely connected system of word-of-mouth referral or localized bulletin-board system, and supported through barter (i.e. trade of knowledge or services) or apprenticeship. In earlier times the term also included certain Hegelian aspects of secret societies and occultism.

It is akin to the old guild system, yet holds no sway in recognized scholastic, technical or political circles. It is merely an attempt to circumvent bureaucratic or monetary obstacles by knowledgeable individuals and civic groups. Said entities generally feel a need to share their methods with fellow journeymen, so to speak, and to strengthen local techniques through collaboration.

In short, it is a grassroots educational system.

See also

• Bard College Clemente Program
• Royal Society