The Puerto Rican Cuatro Chord Bible: BEADG Standard Tuning 1,728 Chords (Fretted Friends)

Very knowledgeable book.

Very thorough presentation of all possible chords.

To complicated for a beginner. It dive to deep into music theory.

First class guide. A must-have for the cuatro player

If you want to play a unique instrument this book is a must.