Still in process, the collection numbers over 70 boxes and spans the time period from the 1960's to the present. Items are continually being added to the collection. The bulk of the materials are printed correspondence (personal as well as professional), published articles and essays, manuscript drafts, course materials, and administrative records. Much of the correspondence and original drafts are holographic as well as typed. There are also videotapes, computer discs, audiotapes, and some photographs. Much of the collection consists of his published articles and essays, with the original publication as well as drafts included in the file.