This powerful set of 2 books includes Memory: How to Develop, Train and Use It and The Power of Your Subconscious Mind by Joseph Murphy. These books help readers improve memory, concentration, confidence, and positive thinking.  Memory: How to Develop, Train and Use It teaches simple techniques to improve brain power and remember things more easily. The Power of Your Subconscious Mind explains how your thoughts and beliefs can shape your success and happiness.  Written in simple and clear English, this combo set is perfect for students, professionals, and anyone who wants to improve focus, mental strength, and personal growth.