You can also remove barriers to access in your current facility with this checklist from the Institute for Human Centered Design.
This booklet of Frequently Asked Questions prepared by the ADA National Network includes several pages of information about "public accommodations," including libraries.
The ADA National Network also has a longer Disability Law Handbook with further information. Shorter Fact Sheets focus on subjects of Effective Communication, Service Animals, Wheelchairs, Overview of 2010 Standards of Design, and Accessible Parking.
A Technical Assistance Manual explains in plain language what non-profit agencies must do to ensure access to their goods, services, and facilities. Many examples are provided.
The Department of Justice created an illustrated update for small businesses that includes much information applicable to libraries.