The Guitar Handbook by Ralph Denyer

This is a classic for anyone into guitars. It's Ralph Denyer's The Guitar Handbook, and it's basically the ultimate reference guide whether you're just starting out or you've been playing for years. It covers everything from acoustic and electric techniques to the actual mechanics and maintenance of the instrument. This copy features the foreword by Robert Fripp and is a great resource for rock, blues, jazz, or folk players. Used, but still a solid addition to any musician's library.