Warman's U.S. Stamps Field GuidePaperback, 13 October 2014

"Warman's U.S. Stamps Field Guide, 3rd edition," features photographs of nearly 1,000 color stamps, thousands of listings values for U.S. regular-issue and Airmail stamps from 1847-2013, all providing a compact and enjoyable overview of one of the world's oldest hobbies.