This series contains folders with general correspondence, pamphlets, and lists of books sold at book fairs ranging from 1981 to 2007. The series also includes organizational correspondence from the California Book Fair of 1974, in which the Weinsteins were partly responsible for arranging.

This subseries contains printed book descriptions used to describe a book's contents, appearance, and condition for use in selling rare books. The book descriptions are housed in folders titled by author's last name, subject, or general work title.

This subseries contains files concerning manuscripts, autograph galleries, and maps. The folders contain descriptions, lists, and stock files for each of the three collection types.