I agree
Though I am currently a smoker now, I have stopped in the past once for about a year. That time I quit cold turkey after smoking 20 a day for ~15 years. I was able to do it then because i really wanted to. After I pulled an idiot move and started again a year later I have since tried to quit, but my heart wasn't in it and was unable to do so. I haven't read the book posted above, but am a true believer that the physical cravings go away in about 3-4 days and after that it is all in your head.