The book is organized into the following catergories(summarized for this review): Tanks, Vehicles, Artillery, Rockets, Infantry Weapons and Airplanes. Each category is then seperated Axis and Allies. Almost all of the 1,500+ weapons covered in this book have an image most of them featuring a photograph. The book is a great cross reference guide for anyone who enjoys reading historical material. Only a few weapon systems are not covered, most of these were prototypes. The German, American, British and Japanese turbine aircraft are covered. The accounts of these aircraft a very accurate with attention paid to how these weapons were or were not used. The photographs are of good quality considering the paper they were printed on. One great example of the depth of this book is it's coverage of Little David'. "The largest-calibre artillery piece of modern times" Sporting a calibre of 914mm, The US military originally designed the gun to test bombs. With the invasion of Japan approaching in 1944, the US wanted to use it to destroy Japanese fortifications. However before the project was completed, the war was over. The book features two images of this artillery piece, including a color image. The best part of the book is the unbiased accounts of how the weapon was used and it's success. For this reason, the book has numerous book marks for quick reference. I see no reason why you shouldn't buy this book, if you enjoy military history. Additionally since the book has no distasteful images of war, I feel it is suitable for any youth at least 10 years of age.