Mas does it again. Everyone who carries has heard an opinion of "carry reloads" or "carry factory" for ammo - not to mention every other opinion for carry purposes. Mas (Massad Ayoob - Principal of Lethal Force Institute) goes through not only logical reasons, but when appropriate he documents court cases for everything he suggests. This includes types of carry guns, ammo choices, holster choices, acceptable levels of caliber, methods of weapons presentation, etc. Tom Gresham said it right - this book is and will be an instant classic for those who choose to carefully and legally exercise their rights under the 2nd Amendment.