Hey at the link here there’s a recent article on guitarist and teacher–the late Mel Bay. The name sound familiar? I think I started with a Mel Bay guitar manual when I first studied electric guitar. Millions of others started with the same booklet. This guy had a whole system down, presented over a series of lesson books and chord studies. His company’s still pumping them out, and now publishes over 4,500 different instructional manuals.