This little book is a field guide that is designed to fit into the pocket and provide a quick reference for sniping skills. There are many sections including history, organization, marksmanship, fieldcraft, range-e and some interesting facts thrown in as well. The book is well written by someone with obvious experience and there are numerous illustrations and images to help explain the subject matter. The book also comes with a plastic protective cover to help preserve it in foul weather. The authors are British, which is not a bad thing since the UK sports some of the best snipers in the world. All-in-all the book provides a good amount of useful information about a wide variety of topics as it relates to snipers. Perhaps it is not an all-encompassing book that covers all aspects of an operational sniper, but it is a handy reference book to store in your pocket.