If your cat were to suddenly start itching uncontrollably, the second thing you'd do (after making an appointment with the vet) is look through your feline health books to try to understand what could be causing it. But looking through a complicated index could become incredibly frustrating. What's Up With My Cat?, by Bruce Fogle, DVM, is an extremely easy-to-use visual guide to symptoms and feline first aid. The book includes a handy yes/no flow chart for every symptom kitty might display, including changes in appetite, vomiting, and bad breath. You simply follow a series of yes or no questions and the chart eventually leads you to a possible remedy. If the symptoms indicate what may be a serious problem, the chart will advise you to see a vet within 24 hours.