Matthew P. Winkler's viral TED-Ed lesson "What Makes a Hero?" introduced the Hero's Journey to millions of viewers (ed.ted.com/lessons/what-makes-a-hero-matthew-winkler). The book Mentoring Teenage Heroes guides parents, teachers, coaches, and other adults toward a fresh understanding of adolescence as a heroic quest. For grown ups, daily life is a routine grind. For teenagers, it's an epic struggle for identity.