People with disabilities have always existed in our communities and societies; however, how we treat them has always been an issue. For example, for a long time, people with physical disabilities received more attention than those with disabilities that we could hardly see (e.g., learning disabilities). Very early research focused on students with sensory impairments and then the focus shifted to students with cognitive impairments. Finally, the focus was on students with learning disabilities and emotional behavioral disorders. Early research with this last group of students focused on comparing students with and without disabilities to document deficits and characteristics of these individuals. Over time, when the characteristics were established, researchers moved their attention to interventions or ways to improve deficits in specific content areas such as reading and mathematics. This chapter is an introduction to the rest of this volume that addresses different viewpoints on interventions for students with different types of disabilities. [For the complete volume, "Viewpoints on Interventions for Learners with Disabilities. Advances in Special Education. Volume 33," see ED600495.]