Jan D. Sinnott, PhD, is a Professor of Psychology at Towson University in Baltimore, MD. She specializes in lifespan development applying existential, positive, trans-personal and body-mind concepts to the question of how we construct satisfying lives with others in our complex and rapidly changing environment. She developed her theory of post-formal thought during her Postdoctoral time at the National Institute on Aging (NIH) and uses it to bring order to the complex understanding necessary to create a satisfying adult lifetime. Based on her ongoing research, she has authored/coauthored over 100 scholarly and applied books and other publications applying her theory to subjects as varied as memory, mindfulness, and re-inventing the university.