Try a keyword search in the library catalog using the terms assistive technology or adaptive technology. One book, The Illustrated Guide to Assistive Technology and Devices, looks particularly good. The call number for this book is is 681.761. R63 2010. Once you view the full record in the library catalog you can click on the subject terms to identify more books.
You could also go to the the Library's homepage and begin a search in EhIS Federated search, which is a way of searching multiple databases.
You might also use your keywords in a Credo Reference search also found on the library's homepage or the link below. These databases can also be found on the Databases Tab > Databases A-Z.