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.

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 lists of books by subject category, miscellaneous lists of books, and lists of books contained in designated collections. Collections listed here range from materials assembled by private collectors to collections of related items assembled by the Heritage Bookshop.

This subseries contains prints, negatives, and illustrations; most negatives are of books and artwork depicted in Heritage Bookshop catalogs or of books published through the Heritage Book Shop. Also included are various pieces of catalog art and illustrations on CD-ROMs.