We’ve mentioned a handful of books Bill Gates has recommended in the past, a collection meant to inspire and challenge those of us looking to put our stamp on this world. Well, if you’ve made your way through the laundry list of reads the former Microsoft man put forth, consider his latest recommendation, which just so happens to be his new favorite book of all time. Enlightenment Now: The Case for Reason, Science, Humanism, and Progress, which can be pre-ordered now, is Gates’s new favorite book. He made the remarks on his site, explaining that the book uses historic trends to chart progress and to show when humanity has been at its best. That means this isn’t some frou-frou meditation on what it means to be good; it’s a deep dive into why certain things lead us to be good. It will also make you believe in the world again if you’ve lost hope. Our pre-order is in already.