"The ACLS Humanities e-Book (HEB) is a collection of over 5000 books of major importance in the Humanities. All parts of the world and all periods are included. The aim is to include 'books that remain vital to both scholars and advanced students, and are frequently cited in the literature.' Fields currently included in the database are Area Studies, Historical Studies, Art History, Literature, Political Science and Religion. Some 300 titles are added to the collection annually." -- From WorldCat.