This subseries contains invoices for items purchased by the Heritage Book Shop. Not all years have a complete range of alphabetical files. A few years are missing, and the invoices available do not run up to the present.

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 invoices from various years interfiled and separated into folders based on a book's subject or a specific author. These folders are collectively titled "subject/author files" in this finding aid, but may be titled under varying other names within each box.