SANDRA RATCLIFF DAFFRON is a program planner, professional educator, project and program director, administrator, and organizational executive in the U.S. and the Middle East. She has extensive experience working with lawyers, judges, teachers, correctional educators, physicians, military trainers, and graduate students. She is Professor Emeritus of Adult and Continuing Education at Western Washington University in Bellingham, Washington.

ROSEMARY S. CAFFARELLA is an emerita professor of education in the College of Agriculture and Life Science at Cornell University. Her research and writing activities have focused on adult development and learning, and program planning and evaluation. She has authored or coauthored a number of books, including the award-winning Learning in Adulthood.