Katherine Callan studied journalism at Boston University and has worked at national consumer magazines, including Success magazine, where she reported on the leading thinkers in self-improvement and human performance. Callan writes and edits for traditional and new-media companies and is launching a specialty publication, For Marathoners Only. She lives and works in New York City and has run thirteen marathons.
Anthony Robbins is an expert in the psychology of peak performance as well as personal, professional and organizational "turnaround." He has, during his career, helped many professional athletes, sports teams, and business organizations. He was a consultant to the 1992 America's Cup Winner, America 3; the 1993 Stanley Cup contenders, Los Angeles Kings; the 1994 U.S. Open Champion, Andre Agassi; as well as companies that include Hallmark, Southwestern Bell and the U.S. Army. He has been an advisor to two royal families and was named the primary consultant in the regeneration of Sheffield, a city in England. Robbin's published works include "Unlimited Power," "Awaken the Giant Within," "Notes From a Friend," and "Giant Steps." He also produced an audio series on personal development called Personal Power.