I have friend who is using the Paul McKenna book and cd (compact disc) at the moment in an effort to improve her relationship with food and lose weight at the same time.
She has said that they are really helping her to resolve why she overeats and picks and combat the habit. She tried this last year but only read the book and felt it did not really do anything for her, however, this time she is listening to the cd regularly too and feels that it is helping her to address the issues with her relationship with food- She has been doing this for about 3 1/2 weeks and has lost 5lb and feels that her cravings are much reduced as well as her desire to pick whenever food is present.
Like Mike I have reservations about how effective this kind of thing would be while following one of the CD plans where the type and amount of food you eat is very controlled but I agree with Mrs P that maybe you should keep them to use when you have finished cd and are trying to maintain. I have asked if I can borrow the book to have nose for myself in preparation for moving up the plans and maintenance!