The Official Blackbook Price Guide to United States Postage Stamps 2014, 36th Edition

Features include: listings by Scott number for every stamp ever issued; thousands of illustrations for easy identification; an updated market review that traces current trends in collecting and investing; exclusive prices for first day cover, mint sheets, plate blocks, line pairs, and PNCs; extensive information on buying, selling, and grading stamps at auctions, online, and through the mail.