The new 28th edition of The OfficialR Blackbook Price Guide to United States Postage Stamps is updated to give you the current value of every U.S. postage stamp along with its illustration on every page. This in-depth source makes it easy to identify and price the collection you own and the stamps you want to buy. This is the most comprehensive pocket stamp guide available, with information on collecting and investing and how to buy, sell, and grade stamps. With complete listings of stamp publications and organizations, this is your passport to the stamp-collecting community. Special Features: * Scott numbers for all possible varieties appear with each stamp illustration * An up-to-date market review that traces current trends in stamp collecting and investing. * Exclusive prices for first day cover, mint sheets, plate blocks, line pairs, and PNCs. * Essential information on how to identify types. Buy it * Use it * Become an ExpertTM.Hudgeons, Tom is the author of 'Official Blackbook Price Guide To U.s. Postage Stamps 2006', published 0000 under ISBN 9781400048465 and ISBN 140004846X.