The Sixth Edition of the Scott Identification Guide by Charles Micarelli has been thoroughly updated to reflect all the changes made in the Scott Specialized Catalogue of United States Stamps & Covers. Through the use of charts and illustrations get the vital information you need to make confident identification of classic and early 20th century U.S. regular issues. Each of the nine chapters features the latest research in recognizing the subtle differences that can mean thousands of dollars between stamps with similar designs. This easy-to-use book is arranged by stamp design and denomination, so you have the entire history of a definitive series right at your fingertips. A must-have reference for any serious U.S. collector, this work picks up where the U.S. Specialized leaves off.