G.I. Gurdjieff was an Armenian Greek from the Russian Caucuses who travelled widely through Asia and the Middle East at the end of the 19th and beginning of the 20th century. Along with a group of Seekers After Truth (as they called themselves) he learned many of the teachings and techniques of wisdom and knowledge found among dervishes, monks and sages throughout the area.
After studying this body of knowledge, he began to teach Western students what he had learned in a form that was appropriate to the time and age in which they were living, and in the context of their current levels of understanding and his own strengths and weaknesses. His teaching is sometimes referred to as The Work or The Fourth Way.
Gurdjieff taught primarily through lectures, music, dances and communal work situations. He also wrote books, in which his stated intention was
"To destroy, mercilessly, without any compromises whatsoever, in the mentation and feelings of the reader, the beliefs and views, by centuries rooted in him, about everything existing in the world...
"To acquaint the reader with the material required for a new creation and to prove the soundness and good quality of it...
"To assist the arising, in the mentation and in the feelings of the reader, of a veritable, non-fantastic representation not of that illusory world which he now perceives, but of the world existing in reality."
Gurdjieff and his students and associates, like P.D. Ouspensky and J.G. Bennett, set down much of the foundation for later Western researchers into the area of traditional psychology and ancient wisdom and their applicability to contemporary life. For example, the Enneagram symbol Gurdjieff introduced has, in recent times, through the work of people like Oscar Ichazo and Claudio Naranjo, become an important factor in the dissemination of esoteric knowledge to the general public.
There are some movies, documentaries and lectures which can give one a partial sense of what the Gurdjieff Work was all about, and how the legacy influenced other people who followed its lead.
Recommended Reading:
Beelzebub's Tales to His Grandson - G.I. Gurdjieff
Meetings with Remarkable Men - G.I. Gurdjieff
Life is Real Only Then, When I Am - G.I. Gurdjieff
Views from the Real World: Gurdjieff's Talks to his Pupils - G.I. Gurdjieff
Herald of the Coming Good - G.I. Gurdjieff
In Search of the Miraculous: Fragments of an Unknown Teaching - P.D. Ouspensky
The Psychology of Man's Possible Evolution - P.D. Ouspensky
The Fourth Way - P.D. Ouspensky
Gurdjieff: Making a New World - J.G. Bennett
Enneagram Studies- J.G. Bennett
Interviews with Oscar Ichazo - Bliebtrau, ed.
Character and Neurosis - Claudio Naranjo
The Enneagram - Helen Palmer