If you have these book than you dont need any trainer.The books also has puctures on how to do the Workout & how does muscles work. The Book contains images of all the professional Bodybuilders. A great book composed by God of BODYBUILDING legend ARNOLD SCHAWRZENNEGER. Buy these book if you love Natural OLD SCHOOL BODYBUILDING & being serious about Bodybuilding. Supplementing correctly will make all the difference to your training and will help support an anabolic state. The only drawback to cardio after a workout is that cortisol levels may get too high, which may place your body into a catabolic state.