Open the front cover and the first two pages you see contain the Index of Signs and Symptoms, from Abdomen (painful, swollen, distended, and tucked up) to Weight loss, Wheezing, and Whining (continual). There's a comprehensive index in back, of course, running the gamut from Abortion to Zinc-Responsive Dermatosis, which is all very useful, but when your pooch is in pain, it's great to be able to turn, with the minimum of folderol, to the page that says to relax, it's nothing a bit of extra grooming won't fix, or alternatively to hightail it over to the vet hospital. It's a wonderful reference for any dog owner, with chapters on emergencies (such as burns, dehydration, and poisoning), as well as worms, infectious diseases, skin care, and canine eyes, ears, and nose. There are chapters on the digestive, respiratory, and circulatory systems, the nervous, musculoskeletal, and urinary systems, plus dog sex, whelping, puppy pediatrics, geriatrics, and chapters on cancers and medications. In short, it covers every health dimension a dog owner might want to know more about, identifies the possible causes, helps you determine the severity of the condition, and indicates what treatments or actions to take to best insure your dog's good health.