We are located in Westhampton, New York, with sales via the internet. We are full-time dealers in antiquarian books, maps, photographs, prints, paper ephemera and works of art, specializing in historical manuscript collections, business archives, and with a sub-specialty in Long Island historical material.

There are thousands of items presently catalogued in the Certain Books website, many of which are one-of-a-kind. Please enjoy browsing our site or use the advanced search feature when looking for a specific item.

We are members in good standing of the Antiquarian Booksellers Association of America (ABAA), the International League of Antiquarian Booksellers (ILAB), the Ephemera Society of America, the Bibliographical Society and Manuscript Society. We are active buyers, sellers and appraisers of antiquarian books, maps, prints, photographs, works of art and ephemeral historical items including documents, manuscripts, literary collections and archives of associated material.

George Krzyminski, Proprietor of Certain Books, ABAA