Books in the Life's Greatest Secrets series

THESE ARE LIFE'S GREATEST SECRETS.I WRITE ABOUT THE MOST IMPORTANT SECRETS THAT I HAVE LEARNED, WHICH WILL HELP ANYONE. In the last 50 years, I have discovered several amazing secrets that very few people know, but these secrets can totally improve the life of anyone. I examined the lives of successful people, and found out what some of their secrets of success were, and that is what I share. If you want to be successful, then imitate them.