Convict Conditioning: How to Bust Free of All Weakness Using the Lost Secrets of Supreme Survival Strength

Convict Conditioning is a book of bodyweight only training. It utilizes six training exercises, each having ten different variations. The six exercises are called "the Big Six", and they are one-arm pushup, one legged squat (pistol squat), one-arm pullup, hanging straight leg raise, stand-to-stand bridge, and one-arm handstand pushup. You don't start with these exercises, but rather easier versions, and they represent the ultimate goal of the workout.