I have not been able to put this book down for the last few weeks. Even though I read the very first version when it was published as a memo in pdf format many years ago. It was already very good then and I printed and kept a copy. But the book is 100x more awesome. If you have not read it, pls go pick it up today. This is one of the best books written ever. For the un-initiated, Ray Dalio runs the world's largest macro hedge fund called Bridgewater. He is a multi-billionaire, made from investing and he attributes his success to his principles for work and life. Hence the eponymous book. He has never published his investment track record, but like Warren Buffett, he probably made most of his money in the earlier years. Bloomberg published a league table (below) a few years ago....