Who's Got Your Back: The Breakthrough Program to Build Deep, Trusting Relationships That Create Success—and Won't Let You Fail by Keith Ferrazzi (Broadway, $25) Keith Ferrazzi, author of Never Eat Alone, emphasizes "lifeline relationships" in this self-help book. Ferrazzi believes all goals are achievable through teamwork. The Sign by Raymond Khoury (Dutton, $26.95) TVs around the world are focused on Antarctica, where an ice shelf is breaking. As the calamitous global warming development is being filmed, a giant symbol appears in the sky. A TV reporter and a car thief discover the meaning of the surreal sign.