This is an incredible book, full of the history of the Colt firearms from the beginning, clear up though the 20th Century. Loaded with historical fact and some of the most gorgeous photos of the most collectible firearms in history, this book covers it all. One can't read this book without coming away with a firm understanding of the various models, how many were produced, and tons of other information. Very highly recommended! 5 stars out of 5 on this one!