The Detroit Public Library, also known as DPL, is one of the largest library systems in Michigan. The library system operates more than 20 branches. It offers a collection of books, reference sets and resource materials to members. In addition, the Detroit Public Library provides information related to musical concerts, book signing events and meetings. The library system administers a range of summer reading programs for children and teenagers. It additionally offers bookmobile services for the community. The library system provides online databases to find magazines, newspapers and encyclopedia articles, as well as directory information. The Detroit Public Library is located in Detroit.