Many books about disease promise cures. Sufferers often go from one book to another without getting better. Between 10 and 20 percent of Americans of all ages will suffer from some sort of arthritis. Despite hundreds of prescription and over-the-counter products that target "the aches and pains of arthritis," it is frequently misunderstood. There are dozens of types of arthritis, some serious and life-threatening. Figuring out what type of arthritis a person has is key to the treatment and overall risk of disability a patient may have. This guide provides a straightforward and clear examination of arthritis and serves as a complete home reference for anyone.