If you’re an avid Cool Material reader, you’ve heard the name Tim Ferriss before. The life-hacking author has penned a number of books on living your best life, which led to an incredibly popular podcast and a TV show. The next book Ferriss is releasing brings together short pieces of life advice from some highly successful people. And like all tips shared by Ferriss, these are actionable things, not just hollow words like “follow your dreams”—which, as you’ll learn in Tribe of Mentors, isn’t so wise. What three books does legendary investor Ray Dalio recommend? Why does Arianna Huffington routinely scramble the apps on her phone? Why does Ben Stiller start his day by dunking his head in water? The answers to these are just some of the unique lifehacks you’ll learn when you pick up Tribe of Mentors when it hits shelves November 21.