You Can Teach Yourself Electric Bass Book/CD Set, by Mike Hiland. This method is loaded with information. In the author's words, "The electric bass is in a very exciting developmental period. No longer does it just provide 'low-end support.' Now entire songs are built around the bass line." This method is both easy to understand and thorough! It provides the theory and technique needed to play contemporary bass, and it covers such modern effects as slap & pop and right-hand hammering techniques.