Left Index (EBSCO) The Left Index™ is a complete guide to the diverse literature of the left, with an emphasis on political, economic, social and culturally engaged scholarship inside and outside academia. Other topics covered include the labor movement, ecology & environment, race & ethnicity, social & cultural theory, sociology, art & aesthetics, philosophy, history, education, law and globalization. Historically significant early Left publications such as The People (est. NY 1891) and The Class Struggle (1931 - 1937) along with classic texts by Marx, Lenin, Trotsky, Engels and others, written in the formative years of the Left are also covered.