Tamar Heller, Ph.D., is Professor and Head of the Department of Disability & Human Development at the University of Illinois at Chicago. She also directs the Rehabilitation Research & Training Center on Aging with Developmental Disabilities, the Advanced Training for Disability & Rehabilitation Scholars program, and projects on support interventions for individuals with disabilities and their families. She also directs the University Center of Excellence in Developmental Disabilities for the State of Illinois. Dr. Heller has written over 125 publications and presented over 200 papers at major conferences on disability policies and interventions, including co-editing two books and editing special issues of four journals. She was a delegate to the 2005 White House Conference on Aging. Her main research interest is on lifespan transitions faced by individuals with disabilities and their families.