I gave up smoking 19 years ago and this book helped me understand the addiction of smoking, It literally saved my life. I was a 100 cigarette a day smoker and I probably tried 10 times over 20 years to give up before I read Allen Carrs book. I sometimes buy "Allen Carrs, Easy way to stop smoking" for a friend who wants to give up smoking as a gift. That is how I made my way here, buying a gift for a dear friend in need.