Left index. This link opens in a new windowThe 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. It is a good place to find significant but little known sources of news and ideas. 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, are also covered.