The ChordBuddy Guitar Learning System Books Only, authored by Travis Perry and Steve Eckels, is a comprehensive guide for guitar beginners looking to improve their music theory skills. Published by Hal Leonard in 2014, this book is designed to help individuals learn guitar chords and music theory concepts through a hands-on approach. With features such as a song book and instruction book, this system is perfect for those looking to enhance their guitar playing abilities in a beginner level setting. The book is written in English and is tailored towards guitar enthusiasts in the United States.