Thich Nhat Hanh's central teaching is that, through mindfulness, we can learn to live in the present moment instead of in the past and in the future. It's only way to truly develop peace, both in one's self and in the world. Now, for the first time, all of Thich Nhat Hanh's key practices are collected in one accessible and easy-to-use volume. Happiness is structured to introduce those new to Buddhist teachings as well as for more experienced practitioners, Happiness is the quintessential resource of mindfulness practices. Integrating these practices into daily life allows the reader to begin to cultivate peace and joy within him/herself, leading to solidity and freedom from fear, misunderstanding, and suffering.

With the practices offered in Happiness Thich Nhat Hanh encourages the reader to learn to do all the things they do in daily life with mindfulness; to walk, sit, work, eat, and drive, with full awareness of what they are doing. It can bring about a shift towards one of the principles of engaged Buddhism, a shift towards practicing mindfulness in every moment of the day and not just while 'formally' meditating.

Thich Nhat Hanh encourages his readers to "try to be intelligent and skillful in their practice, approaching every aspect of the practice with curiosity and a sense of search. It's important to practice with understanding and not just for the form and appearance. Enjoy your practice with a relaxed and gentle attitude, with an open mind and receptive heart."