I wanted to build a Abrams tank. So I purchased this book to learn more and I did. PRO'S: Being a Navy aircraft Vet and not seeing a Abrams up close this book was great. Like in the Navy you draw replacement parts from supply and seeing green on desert color tanks made me feel good. Not every thing is perfect. Like spare tank tracks different colors on a turret. It was also helpful with weathering, battle damage, ammo color and placement of certain parts on the turret. CON'S: None