There are many books written on happiness but very few are based on scientific studies. Too many are “feel good” books that can be written with a minimum of effort but which I don’t believe really help in the long run. I have tried to use everything that science in general and positive psychology in particular has discovered in the last 50 years and apply it to resolving personal problems that I have experienced and that I have seen many others live through. The exercises in the books are key aspects for helping the reader change their way of thinking, and change their behavior to find joy in their life as I have found it in mine.