Reviewed by Shawn Bradshaw
(2006, Author and writer for Cyberfret.com)
There are literally hundreds of books currently  available   on how to play guitar. And as a student of the guitar and a  professional guitar   teacher for the last 20+ years, I have certainly  read a good number of them.   Some are valuable additions to your home  library, and others only have value   as kindling for your next  campfire. "The Principles" is a book unlike   any other I have read, and  holds a unique status in my library.
"The Principles of Correct Practice for Guitar"  is   not a method book in the traditional sense. You will not find  scales, chord   charts or licks of any kind. But you will find a book  filled with insight and   exercises to help you overcome common pitfall  of hand position and muscle tension.   Issues that lead to incorrect  practice, and are detrimental to your progress   as a guitarist.
The material in the book is broken down into 3  categories:   Understandings, Tools, and Exercises. Understanding helps  identify a problem   area, often one you might not have thought about.  Tools are the solutions to   these problems, and the Exercises give  practical ways to incorporate the Tools   into your practice routine.
Jamie Andreas is a gifted writer and music  educator, and   has the unique ability to analyze the problems that  plague guitar players and   break them down into their core components.  This book will help you prepare   your body and mind for the journey of  learning to play the guitar, and is required   reading for any serious  student of the instrument.
About Shawn Bradshaw: 
Shawn Bradshaw has a degree in Jazz Composition  from Boston's   Berklee College of Music, and has taught guitar  privately for over 20 years.   Shawn has written multiple books and  writes for and runs Cyberfret.com, a large   site of free online guitar  lessons and articles.