Established in 1955, ABC-CLIO is a privately held corporation. It has for many years enjoyed an international reputation for high quality and innovation. The company is headquartered in Santa Barbara, California, with offices in Denver, Colorado, and Oxford, England. As an educational reference publisher, ABC-CLIO has received critical acclaim for its computer-assisted abstracting and indexing services, world-renowned book program, and cutting-edge online products. ABC-CLIO's reference books have, since 1993, won an unprecedented number of Best Reference Book of the Year awards from Library Journal, Choice, and Booklist.