Susan McHugh is a learning specialist with extensive training and experience in adult learning and curriculum development. She holds an MEd degree from the University of Missouri and completed her coursework for a PhD in education administration with a specialty in adult learning theory. As a professional curriculum developer, she has directed numerous curriculum projects and educator training programs. She has worked in the public and private sectors as a consultant in training and employee development. While Jim and Susan treasure their participation in writing projects, their greatest accomplishment is their collaboration on their three children. Casey is carrying on the family's teaching tradition as an adjunct social work professor at Washington University and the founder of an incubator to help therapists start their own practices. Molly and Michael are carrying on the family writing tradition by contributing to the development of this text and several supplementary materials.