The Holt Labor Library (HLL) is a special library that collects, preserves, and provides access to materials related to labor history and radical movements. It was founded in 1992 and is privately funded and open to the public. The HLL's collection includes over 10,000 books, 700 subject files, newspapers, audio/visual materials, and personal archives. The library aims to support research and activism, and is used by students, scholars, labor activists, and others interested in its specialized topics.