The document defines and discusses various types of disabilities. It begins by defining impairment, disability, and handicap. It then discusses how these concepts are now represented by the single concept of disability, which has three dimensions - impairment, activity limitation, and participation restrictions. The document goes on to describe several specific types of disabilities including visual impairment, hearing impairment, intellectual disabilities, learning disabilities, speech and language disorders, emotional/behavioral disorders, physical disabilities, and chronic health conditions. It provides characteristics and classifications for each disability type.