 Of note are the approximately 80 books that form the working core of Held's scholarly collection.These texts include his manuscript annotations and commentary concerning provenance and identification of illustrations present in the texts and appear on the inside of covers, as marginalia, and as end notes on the fly leaves.Also included are separate ephemera consisting of Held’s notes on images within the works, along with letters, invitations, annotated dealer’s catalogs and offprints.