The happiness triangle is the sum of different studies and personal experiences aiming to understand the process to achieve a constant state of happiness in life. The book provides a simple outline on how to understand ourselves in order to conquer the wildest of our ambitions. Dieudonné Damour emphasizes on the importance of balancing between three elements Wealth, Worth and Health, the three pillars of a sane and happy personal growth. In the different chapters, the readers are provided with the required tools to evaluate by themselves their level of happiness as well as the suggestions to improve it , according to their own personal needs. In only 73 pages, the writer gives a powerful tool for any person seeking to know more about his own psychological and physiological power to consequently further personal satisfaction and happiness.