John W. Santrock received his Ph.D. from the College of Education and Human Development at the University of Minnesota. He taught at the University of Charleston and the University of Georgia before joining the faculty at the University of Texas at Dallas. He has worked as a school psychologist and currently teaches developmental psychology and educational psychology at both the undergraduate and graduate levels and introductory psychology at the undergraduate level. Dr. Santrock's research on father custody is widely cited and used in expert witness testimony to promote flexibility and alternative considerations in custody disputes. His research has included publication in the Journal of Educational Psychology that focus on the contextual aspects of affectively-toned cognition and children's self-regulatory behavior as well as teachers' perceptions of children from divorced families. He recently was a member of the editorial board of Developmental Psychology and his publications include these exceptional McGraw-Hill texts: CHILD DEVELOPMENT, Eighth Edition; LIFE-SPAN DEVELOPMENT, Seventh Edition; CHILDREN, Sixth Edition; PSYCHOLOGY, Sixth Edition; and EDUCATIONAL PSYCHOLOGY.