What can we do to improve ourselves as humans? There are thousands of recipes for self- improvement and no end to the number of books written on the subject. One book that is simpler and easier to understand that others is The Four Agreements, a philosophical/self- help book that aims to make you a better person.Based on ancient Toltec wisdom, this book outlines four broad, simple goals that will help each one of us gain more freedom over our lives and improve as people. The four truths are: Being impeccable with your word; not taking things personally; not making assumptions; and always doing your best. The first one, about being true/impeccable to your words, forms the groundwork for the other truths.This book’s greatest strength is its simplicity. It doesn’t get bogged down in philosophical lingo and this fact makes it a good choice for those who appreciate philosophy, but who get tired of philosophical books that require a bachelor’s degree and access to a dictionary to understand. The book is a quick read and the way it is written, anyone can directly grasp its key points.The Four Agreements and its advice are things that have been said in one form or another by other philosophy books and/or self- help books. The message can get a little repetitive as you read, but I didn’t mind because I feel like this is the type of general advice that needs to be drilled into your head. The more you hear it, the more it will hopefully ring true and the more likely you will be to take action.I read this book in a single sitting, while I was on an airplane flying home from vacation. I agreed with and liked what I read and immediately started to think about my own life and how well I am living up to these four agreements. I would rate myself around eighty; meaning, I feel that I am following these words of wisdom about 80 percent of the time. There is still room for improvement, but I feel like I am ahead of most people.If I had any issue with this book, it is that it does tend to speak in absolutist terms more than I would prefer. It seems to think that everyone is going to be better off and see improvement if they follow this advice, no exceptions. This, of course, is not the case. Will most humans improve their lives and freedom if they follow what this book says? Yes, absolutely. But there will always be exceptions to the rule.Self- improvement is a huge industry and books like The Four Agreements are useful for those who want to live a better, happier, more fulfilling life and need general guidance to reach their goals. This book is about as straightforward as you can get and the ease of reading and no- nonsense approach is just what humanity needs to work out our problems and be all we can be.