| title | ISBN-13 | year of publica- tion | other author(s) | |
|---|---|---|---|---|
| Game Changers: "Stop Trying to Be Perfect--You've Already Failed" and Other Life-Changing Slogans to Kick You Out of Your Mental Rut and Bring You Closer to Your Goals | 978-0-451-49540-2 | 2016 | ||
| Gelebte Dankbarkeit. Glücksimpulse für jeden Tag | 978-3-7787-9079-3 | 2001 | ||
| The Happiness Makeover: How to Teach Yourself to Be Happy and Enjoy Every Day | 978-0-7679-2007-0 | 2005 | M. J. Ryan | |
| The Power of Patience: How to Slow the Rush and Enjoy More Happiness, Success, and Peace of Mind Every Day | 978-0-7679-1486-4 | 2003 | " | |
J R · J Ryan · Jane Ryan · M J · M.J. Ryan · m r · M. Ryan · Mary J. · Mary Jane · Mary Ryan