Overwhelmed? If you feel anything less than “hell yeah!” about something, say no. We say yes too often. By saying no to almost everything, you leave space and time in your life to throw yourself completely into the few things that matter most.

Many books believe they know how you should live. But each book disagrees with the next. In How to Live, each chapter believes it knows how you should live. And each chapter disagrees with the next.

Josh Kaufman founded PersonalMBA.com as an alternative to the business school boondoggle. His blog has introduced hundreds of thousands of readers to the best business books and most powerful business concepts of all time. Now, he shares the essentials of entrepreneurship, marketing, sales, negotiation, operations, productivity, systems design, and much more, in one comprehensive volume. The Personal MBA distills the most valuable business lessons into simple, memorable mental models that can be applied to real-world challenges.

Derek Sivers was a professional musician before he started a music distribution company that helped 150,000 musicians sell their music to over four million people. So after years of living the problems, he was able to learn the solutions.

Every new project (or job, or hobby, or company) starts out exciting and fun. Then it gets harder and less fun, until it hits a low point: really hard, and not much fun at all. And then you find yourself asking if the goal is even worth the hassle. Maybe you're in a Dip: a temporary setback that you will overcome if you keep pushing. But maybe it's really a Cul-de-Sac, which will never get better, no matter how hard you try.