A practical guide to adult life’s greatest mysteries that were never taught in school but should have been—including how to launch your career, find your purposes (for right now), invest your money, and much more.

Though twenty- and thirty-somethings are better educated than ever before, essentially none of the topics critical to being a full-fledged adult—such as how to get a new job, create a budget, file your taxes, face rejection, and navigate family dynamics—are covered in lower or higher education.

Fortunately, here is a book that does just that. From entrepreneur Raffi Grinberg, who lived and learned the hard way throughout his twenties, here is a crash course in everything you need to know to be a grown up.