This is a great book, a real trainer at home. I bought it in order to do some exercises to strengthen my body especially on the abs and I did not do anything. Eventually I discover that I can do weight training at my own pace with real pro tips. Now I have adopted a new lifestyle not binding and I lift weights to really develop my body without being either a beast contest, I did not want to change my dressing my size is Ms. well. I stay at 4 but if you want more there are 37.