Dr. Tim Lewis has been involved in special education for 30 years. Dr. Lewis has taught students with emotional and behavioral disorders in high school, elementary, and self-contained psychiatric settings. At present, Dr. Lewis is Professor of Special Education at the University of Missouri. Dr. Lewis is a member of 13 editorial boards. During his 27-year career in higher education Dr. Lewis has served multiple terms as department chair and associate dean for research. Dr. Lewis has been involved with developing school-wide systems of behavioral support for over 20 years. He has worked directly with school teams around the world, secured over $38 million in grants to support his research and demonstration efforts, and is a frequent contributor to the professional literature examining various aspects of Positive Behavior Support. Dr. Lewis directs the University of Missouri Center for School-wide Positive Behavior Support, is Co-Director of the national OSEP Center for Positive Behavioral Interventions and Supports and former Co-Director of the Center for Adolescent Research in Schools. His specialty areas include social skill instruction, functional assessment, and proactive school-wide discipline systems.