The How of Happiness: A Scientific Approach to Getting the Life You Want

I highly recommend this book to anyone who wants to learn to be happy. The diagnostics help you understand which activities can make you happy and what we might want to improve on. The book is divided into chapters each dedicated to different practical advice. This is a well researched and well written self-help book and at the same time a review of various studies that have been done on improving lasting well-being. The activities are easy to do. Clearly explained. And if you don't believe that it will work, there is proof of it working for many others. So its a collection of tested methods. Although, I do question the advice on religion and spirituality.

It's based on research and science not just rhetoric. If you find the best fit activities and regularly do them, you will live a happier life, 100%!