Designing Web Content for People with Learning Disabilities
We need to design sites to include as many people as possible so that we have a fairer world. We need accessibility to bridge differences and integrate more people into society. If someone who could understand Web content is unable to because of the design choices of the Web author, then that Web content is not as accessible as it could be - even if it can be used by all types of physically disabled users.
Seeman, Lisa. UBaccess (2002). Articles>Web Design>Accessibility