 Named after Richard C. Butler, Sr., a noted Little Rock lawyer and philanthropist, the primary function of the Butler Center is as a research library and historical archive, specializing in Arkansas related materials.In addition, the Butler Center manages an online repository of Arkansas history called "The Encyclopedia of Arkansas History & Culture" at the Central Arkansas Library System.Other projects of the Butler Center include the Arkansas Sounds Music Series, featuring live performances by musicians with ties to Arkansas; Radio CALS, a weekly radio show featuring music, lectures, and oral histories from the Butler Center collections; and the Arkansas Studies Institute, a joint project providing researchers access to the collections of the Butler Center and the University of Arkansas at Little Rock's Center for Arkansas History and Culture.