Rosemary K.M. Sword is codeveloper of Time Perspective Therapy and lead/coauthor of numerous TPT-related books and articles as well as a popular PsychologyToday.com blog. She lives in Kula, Hawaii. Stanford University professor emeritus Philip G. Zimbardo is known for his landmark prison study, dramatized in the IFC film The Stanford Prison Experiment. His nonprofit Heroic Imagination Project teaches how to meet challenges with wise and effective action. He lives in San Francisco.