Kathy L. Callahan, Ph.D. was born in Chicago, Illinois.  She received a bachelor's degree from the University of Illinois at Chicago Circle, and a Master of Science degree from Purdue University.  As a graduate student, she traveled to Tucson, Arizona , where she completed an assessment study of alcoholism treatment modalities for urban Tohono O'Odham (Papago Indians), for which she earned a Ph.D., also from Purdue University.  She was commissioned as an officer in the U.S. Navy in 1982, and has served as a career Naval officer since that time. 

She has been a student of the Edgar Cayce readings for over 40 years, and strives to actively apply the principles found in the readings in her daily life.  She has been a student of A Course in Miraclesfor over 14 years.  A very compelling speaker and trainer, Kathy teaches courses and workshops on a variety of subjects including the Universal Laws.  she has presented workshops at A.R.E. headquarters and field conferences.  She is a frequent speaker at Unity churches, and has appeared on radio and television.  She currently resides in Burke, Virginia.  she is the author of several books: The Path of the Medicine Wheel: A Guide to the Sacred Circle(2006); In the Image of God and the Shadow of Demons, A Metaphysical Study of Good and Evil (2004); Living in the Spirit, Applying Spiritual Truth in Daily Life (2002); Unseen Hands and Unknown Hearts, A Miracle of Healing Created Through Prayer (1995); Our Origin and Destiny: An Evolutionary Perspective of the New Millennium (1996), revised as Multisensory Human: The Evolution of the Soul (2005).