Wozniak Maurice D. Warman's U.S. Stamps Field Guide: Values and Identification

F+W Media, Inc., 2011. — 514 p. — ISBN 978--1-440216-99-1.The take-it-with-you collecting resource!At last, a guide you can really carry along to estate sales, garage sales, and flea markets, containing 1,000 color photographs and current pricing to make on-the-spot appraisals easy.New to this edition! Feature chapters on Christmas stamps and Error stamps
1,000 detailed color photos
Listings for all 4,250+ U.S. regular-issue and Airmail stamps from 1847-2010
Accurate prices in Unused and Used condition
State-of-the-market report and advice on beginning a collection, including where to find stamps, judging quality, grading, and handling and storage.