This is written by a Tibetan buddhist monk, but is religion free. It is about mindfulness, and how to live well. The first part is about life, why we suffer, and the principles to change our thinking, etc. I really found it great. The second part has the meditation exercises how to bring about the change from chaos to mindfulness.
This book is compact, easy to read, but is all about the deep issues. It explains for example, why you lack of compassion makes you miserable. and how we hide in action. Yes, meditation is action, but a different type. I have only started the exercises, and one does need to make a commitment to go through them as proposed, since some of them are pretty long- but only for a week-and then comes different one. The idea is that these exercise make you more mindful, calm, clearheaded, less reactionary and more compassionate. Give it a try!