American Book Prices Current is an annual record of books, manuscripts, autographs, maps and broadsides sold at auction. Regions covered include North America and the UK, with sales from such other countries as Switzerland, Germany, Monaco, the Netherlands, Australia and France.

ABPC is not just a transcribed record of titles and prices, copied unquestioningly from the season's auction catalogues. ABPC is the standard tool used by dealers, appraisers, auction houses, scholars and tax authorities. It is, moreover, the only work in English in which each listing of printed material has been checked as to title, format, date of publication, edition, and limitation. Sales of autographs and manuscripts are reported in a separate database. For these reasons, ABPC is an essential tool for buying, selling and evaluating books, serials, autographs, manuscripts, broadsides, maps and documents, based on actual figures realized at auction.

All prices listed are hammer prices, that is, the price actually called out in the saleroom when the lot is knocked down to a buyer.

In keeping with previous editorial policy, auction lots consisting of groupings of miscellaneous volumes are not listed, for the prices realized by such lots can give no accurate indication of the value of individual items. Similarly, listings of badly broken runs or seriously incomplete sets of printed books do not appear. Listings of books in non-Western languages realizing less than $100 have been selectively excluded, as have peripheral works such as panoramas. Items which are sold by auction houses as "a collection of plates" or which are deemed to be bound prints rather than books, are excluded from these pages. Listings of books after 1900 frequently appear without format or binding information. In such instances it may be assumed that these books are octavo or duodecimo and bound in cloth or boards.

Katharine Kyes Leab has been the editor of ABPC since 1972. She is the Mother of ABPC on CD-ROM, ABPC on a Stick, and American Book Prices Current Online. She is also both bibliographical and funny. As such, she writes and lectures extensively about the values of books and manuscripts and on other topics related to books, auction houses, and the fine arts.

As to effort and diligence, we try like mad to get it all correct, but as we are human beings and imperfect, we do not accept legal responsibility for the information in our databases. Having said that for the benefit of our lawyers, let us reiterate that we want to do as excellent a job as we possibly can. We ask our users to contact us with any corrections or suggestions they may have. The beauty of databases is that they can become ever better.