This book is written for people who have received a lump sum of money that they define as significant, whether in amount or in meaning. It starts with a compilation of anonymous letters written by windfall recipients in the form of confessional notes to help you avoid falling into the same traps. The second part contains reflections on the science behind our tricky brains. Here, I talk about the biases, beliefs, judgments, preferences and habits of the human mind that distort our decision-making. The third part contains the steps you need to take to get on track and move on with your life using your windfall to achieve your goals. Focusing on your goals and your values is the only way I have found to shock people out of their trance-like hang-ups about their windfalls. Focusing on what you want to accomplish with your money will save you from looking back on your life and regretting your behavior with your windfall. You will not be bored, you will not be intimidated, you will be forever proud of yourself for having devoted the time to read and learn from this section of the book. My intention in compiling this book of letters and highlighting the common biases of the brain is to play a positive role in facilitating better decision-making with the emotionally charged sudden wealth of a windfall. It's a book for people who like the idea of a process to follow to make sure they do not fall into common decision-making traps. It's a book for people who want to put effort into good, responsible decision-making and then get on with life. It's for people who know to trust their gut, but who also value a rational approach to life and want to balance the two.