ACLS Humanities E-book This link opens in a new windowHumanities E-Book is a digital collection of over 5,800 full-text high-quality titles which are fully searchable. Titles focus on the Humanities, comparative and world studies, history, philosophy, political science, area studies on Asia, Southeast Asia, Europe, Middle East, United States of America. The years of publication range from 1880s to present. The collection is offered by the American Council of Learned Societies in collaboration with other learned societies and publishers.