Abstract This collection consists of 400 books, 12 linear feet of archival items and resource material about Upton Sinclair collected by bibliographer John Ahouse, author of Upton Sinclair, A Descriptive Annotated Bibliography. Included are Upton Sinclair books, pamphlets, newspaper articles, publications, circular letters, manuscripts, and a few personal letters. Also included are a wide variety of subject files, scholarly or popular articles about Sinclair, videos,...