As part of a national network cooperating with the National Library Service for the Blind and Print Disabled (NLS), the Wisconsin Talking Book and Braille Library (WTBBL) provides audiobooks and Brailled materials to persons, living in Wisconsin, who cannot read or use regular print materials as a result of temporary or permanent visual or physical limitations. In addition, WTBBL also circulates audiobooks and braille materials about Wisconsin or by Wisconsin authors, as well as audio-described DVDs.