Volumes 1 and 2 transcribing a series of symposiums on Time and Space in Modern Art edited by Marilyn Bedford and Jerry Herman. "Time and Space I," was a symposium on concepts in music and visual art, and was moderated by Dore Ashton. Panelists included John Cage, Merce Cunningham, Richard Kostelanetz, and Nam June Paik. "Time and Space II," was a symposium on concepts in event art, and was moderated by Lucy R. Lippard. Panelists included Vito Acconci, Daniel Buren, Poppy Johnson, and Carolee Schneemann. "[From] a series of publications being published by the association of artist-run galleries in an effort to present a survey of the thoughts of modern artists in the vanguard who are involved with time and space concepts in diverse media." -- from the introduction.