What makes this book useful is the plethora of information it gives on cats as well as the way it is organized. The encyclopedia is quite thorough in detailing not only the various subjects of cats, but types of cats and other areas concerning care and behavior.
There are many topics covered. One of the first main sections focuses on what a person should look for and know ahead of time before choosing a cat for adoption. It gives some tips on what to look for in a healthy cat, and how to care for a sick cat, as well as how to maintain a healthy lifestyle for your pet. This section is followed by advice on how to create the right environment for your cat: how you can help your cat "settle" into its new home, what to do if it does not adjust well, access to litter boxes, toys for cats, etc. This is followed by a section on how to care for cats home and away. If you happen to be leaving town for a time, there are some helpful bits of advice on how to make it less stressful on your feline friends. Explored in this section are such things on dangers to cats within the home and outside and ideas about access to the outside, such as how often you should let your cat out. There is also a section on nutrition and feeding, which goes over how much and what you should feed your cat based on its age or weight. Perhaps the biggest section is the one which goes over the many types of cats--these are broken into shorthair and longhair. There are many pictures of the various types, as well as information on their personalities and temperaments. The final section is about sickness and diseases, from minor to serious, and how to go about treating each one.
What I found most helpful about the book is the broad range of topics about cats. You can think of a common question about your cat, and it is probably answered in this book. There are tons of pictures of cats and their many predicaments included in the book, but this isn't just a "pretty" encyclopedia meant to grab you with its big, cute pictures. There is a ton of information for someone who has never had a cat, and information for someone who has grown up with cats all their life. The cat novice and the cat veteran will probably agree this is an excellent book! A must for any cat lover!