As he entered fatherhood and a phase of changing ambitions, Eric Liu set out in search of great mentors. He found much more. He encountered people from all walks of life, from all across the country, with something powerful to pass on about how to change lives. Among those Liu portrays in vivid and fascinating narratives are one of Hollywood's finest acting teachers, who turns a middling young actress into a project for transformation; an esteemed major league pitching coach, haunted by the players he's let down; a rising executive whose eye for untapped talent allows her to rescue a floundering employee; a master clown whose workshop teaches a husband-and-wife team to revamp their relationship, onstage and off; a high school debate coach whose protégée falters at the pinnacle, and thus finds triumph; and a gangland priest who has saved many and yet still must confront the limits of his power to heal.