The Master Key System

One of the best books available to expand your mind. Love that it has the original text and the updated text. This way you can cross reference for clarification.

Book found very interesting

Very good book! With practical excercises and quite easy to do.

Can recommend this book and the use of a highlighter for your reviews when reading it again and again.

I love this book, I do the exercises and the method works for me... I see myself being transformed and seeing good in everything around me. One of the best self help books I have read along with Psychocybernetics.