Many people in the UK at least have reported good results with that book. I can't really explain it - there are no moments of profound revelation, it just sort of quietly convinces you that smoking doesn't really relieve stress, that you don't need it and you can quit. I just read it in the evening before going to bed and decided that the next day I would quit.
At the same time, I took up running and weight training. I started running straight away even though I could hardly run 50 yards. I think this helped enormously because I was focused completely on what I was gaining in fitness and I didn't feel for one moment that I was "giving something up".
All the same there is something I can't quite explain about it. I tried many times before and really struggled, yet when I finally quit it was easy. Now when I look back its like remembering a previous life.
I was a pack-a-day smoker for about 20 years. Quit and started lots of times.
I replaced cigarettes with a nicotine vape (salt nic) about a year ago and haven't looked back. I still consume the equivalent of a "pack of day" worth of nicotine. I still get the rituals and sense of "stepping away" that I used to have.
I liked cigarettes in the same way I like coffee and probably would have been happy to smoke indefinitely if I hadn't had kids and it wasn't so incredibly harmful.
It's unfortunate that vaping is not "zero harm", but in my life situation I believe it's been a major harm reduction that would have been very, very difficult to achieve otherwise.
Edit: I smoked like a 50g pouch in roughly 4 days at my peak....when I started vaping I was back to maybe a 50g pouch every 8 days or so.
One day I woke up after an adventurous epiphany that made me realized I could have saved more than $6000 of today's value in a year by literally stop smoking slow and painful death.
That was it, really.
I quit it cold turkey and never look back.
Oh! And by the way, your sexual life becomes very VERY powerful and energetic.
You find strengths you didn't know you had all this time.
The real problem isn't the "addiction" (which is so mild as to be laughable); its the sudden influx of time you have, and the fact that smoking, favors a sedentary lifestyle (typically associated with high stress jobs).
Typical spreads are; 1-3 days discomfort, 7-day relapse, 14-21 day relapse, 6 week relapse. after that, unless you hang out with smokers...