Books on how to be happy by professional psychologists, philosophers, and other great figures of history.
I recommend starting with Think And Grow Rich by Napolean Hill. The kindle book is free! Many modern day self help books incorporate the teachings of this book.
The Four Agreements: A Practical Guide to Personal Freedom (A Toltec Wisdom Book) by Don Miguel Ruiz is another great book to start with. A very simple and easy to remember but powerful foundation for thinking and acting, and building a positive future.
Top Psychology Books On How To Be Happy and Improve Your Life:
Self Help, Life Focusing, and Business:
My Books On How To Be Happy