New York Times bestselling author Rodd Wagner and Gallup Vice Chairman Gale Muller explore the crucial dimensions of a successful partnership and the stories of famous pairs who epitomize those elements.

Many of the greatest accomplishments can only be reached by two people working together. Tenzing and Hillary were first to scale Everest. Malone and Stockton were the key to each other's success on the basketball court. Eisner was never as effective at Disney without Wells.

But while some partnerships reach great heights, others fall short. Why do some people click while others clash?...