The 4:8 Principle by Tommy Newberry is a powerful book that reveals the secret to a joy-filled life. With its inspiring message, this hardcover book is the perfect addition to any personal growth library. Written in English and published by Tyndale House Publishers in 2007, this book is a must-read for anyone looking to improve their cognitive psychology and cognition.

The book covers various topics such as personal growth, success, and Christian life. Its self-help and inspirational genre make it an audiobook worth listening to. Whether you are a psychology enthusiast or just someone who wants to enhance their personal growth, this book has something for everyone.