In July 1983, after uncountable unsuccessful attempts to quit smoking, Allen Carr, who had been a chain smoker for many years, found a way how to stop smoking from one day to the next. With courses and his bestseller „The Easy Way to Stop Smoking“ (German title: „Endlich Nichtraucher!“), his method became renowned all over the world and above all was also acknowledged by specialists. Millions of people willing to stop smoking have meanwhile become content non-smokers with this method; so, the success speaks for itself.  A list of his books can be found here.