Which self help book has sold the most copies?
The Top 15 Best-Selling Self-Help Books of All TimeThink and Grow Rich.The Alchemist.You Can Heal Your Life.Rich Dad, Poor Dad.The 7 Habits of Highly Effective People.Don’t Sweat the Small Stuff… And It’s All Small Stuff.Who Moved My Cheese?The Celestine Prophecy.