All cat owners should own a copy of this book--your cat will thank you! The basic idea is to teach your cat not to be stressed about potentially stressful things--e.g. combing, being put in a carrier, having to share a home with another pet or a baby, etc.
Our cat has rather long fur that tends to clump in places, but she used to hate being combed--no matter what type of comb we used, no matter how short we made our sessions. She would emit these little outraged shrieks at each passing of the comb, then after about thirty seconds she'd stand up on her paws and run away--or she'd try to scratch or bite--despite otherwise being one of the friendliest, mellowest cat we know. Reading Bradshaw and Ellis's book changed that: we used their method for getting cats to create positive associations with things they don't like, and now our cat absolutely loves being combed--no more shrieks, no more bites or scratches--she'll even stretch and roll around as we comb her, making it possible to cover a wider area of fur!
Admittedly, we still haven't tried getting her to like the carrier, but the principle is the same as with the combing, so we're optimistic.