Allen Carr used to smoke 100 cigarettes a day - a habit that was driving him to despair.
He tried every technique around but they just wouldn't work, until he discovered his now famous Easyway method in 1983 and finally quit for good.
This led to the bestselling book, Allen Carr's Easy Way to Stop Smoking, and a successful chain of clinics, which has helped thousands of people across the world in their goal to be free of tobacco.
His story, from slave to a habit that was destroying his life to latter-day lifestyle guru, makes for both inspirational and utterly compelling reading.