Biking is cheap, healthy, and can provide easy access into an incredible array of life experiences. In this wide-ranging and quick-hitting guide, author Rob Coppolillo explains how bikes work, why bikes matter (especially today, when gas is expensive and interest in green living is high), and how readers—whatever their level of experience—can indulge their tastes for mountain trails, competitive racing, city exploration, and basic transportation from point A to point B. Profiles from a raucous cast of health, racing, and travel experts shed light on common pitfalls and offer great ideas on pursuing your passions while on two wheels. So take the quiz, pick your bike, and let's get rolling!