If you are an airgun enthusiast, this is the ultimate guide you have been looking for! Written by Dr. Robert D. Beeman (founder of Beeman Precision Airguns) and John B. Allen, this 700 page paperback publication is the most complete and comprehensive book on airgun values and information ever published. From modern airguns to vintage ones dating back to the late 18th century, the 11th Edition Blue Book of Airguns covers them all.