These are my go-to books for teaching music and recommended tools for my students.
Mel Bay's Modern Method for Guitar Book 1
Modern Guitar Method Book 1 - Expanded Edition
Mel Bay Modern Guitar Method Book 2
Modern Guitar Method Book 2 - Expanded Edition
21st Century Rock Shop Book 1
21st Century Rock Shop Book 2
Children's Guitar Method Volume 1
Children's Guitar Method Volume 2
Children's Guitar Method Volume 3
John Thompson Modern Course for the Piano - First Grade
John Thompson Modern Course for the Piano - Second Grade
Teaching Little Fingers To Play
Easiest Piano Course - Part 1
Schaum Fingerpower - Primer through Level 6
Electric Bass Method Volume 1
Rubank Elementary Flute Method