40178 - Blues Guitar for Adults, by Wayne Riker. This fun and friendly step-by-step introduction to blues guitar is written with the adult learner in mind. It is both a great self-teaching book and a great method for use with an instructor. Blues Guitar for Adults covers scales and techniques for blues lead guitar, important blues forms---such as the 12-bar and 8-bar blues progressions---and even provides licks in the style of the most important blues guitar masters. Easy-to-read examples.