Cats love to groom themselves. But sometimes they need help. Brush them regularly with a grooming brush. Long-haired cats need to be brushed daily to avoid mats, which can knot close to the skin, eventually getting tighter and tighter.
Make sure to check your cat's skin every so often for any kind of irritation, redness or unusual growths. If you want to see professional grooming in action on some very exotic purebreed cats, find out when the next cat show will be in town and stop in. There are often live demonstrations on how best to groom your cat at these shows.
For more information, please read the story Grooming Your Cat.