Originally published between 1965 and 1967, the Great Bear contributors were a who’s who of the sixties avant-garde: George Brecht, John Cage, Al Hansen, Allan Kaprow, Claes Oldenburg, Nam Jun Paik, Diter Rot and Emmett Williams, were just but a few of the artists/authors in the series. All of the pamphlets were staple-bound and 16 pages in length (except for the Manifesto issue, which was 32 pages).