Students with disabilities have many obstacles to overcome and challenges to address as they go through the educational system. Besides challenges with academics, behavior, and social situations, these students also need to be able to transition throughout their educational careers from different grade levels to post-school outcomes. Transition for students with disabilities should include input from classroom teachers, school psychologists and other related school personnel, families, the community, and, of course, the student. Specifically, the student should be an integral part of the transition process and planning. This chapter focuses on transition in general, discusses data from the National Longitudinal Transition Study-2, and sets the stage for the rest of this volume. [For the complete volume, "Special Education Transition Services for Students with Disabilities. Advances in Special Education. Volume 35," see ED601993.]