The firearms industry standard is back with an all new 37th Edition Blue Book of Gun Values! This edition has been updated with current market trends, values, and 2016 makes and models. With 2,512 pages covering 1,500+ manufacturers, nearly 30,000 gun model descriptions, and over 180,000 prices, this new 37th Edition contains more information, values, and history than any other guide on the market, by far! The 37th Edition Blue Book of Gun Values features a Beretta SO6 shotgun on the cover, custom engraved by Mario Terzi. It also includes a more detailed Photo Percentage Grading System (PPGS), and an expanded serialization section, allowing more dates of manufacture to be determined.