Noted Marxist thinker Aijaz Ahmad passed away on 9 March in Irvine, California. He leaves behind a rich intellectual tradition. An Urdu writer and literary critic, Aijaz Ahmad mounted a robust defence of the Marxist method against post-Marxist, postmodern and post-structuralist theories. His In Theory: Classes, Nations, Literatures, first published in 1992, emerged as a Marxist classic, inspiring scholars across the globe and providing them with the intellectual framework to challenge the various “post” ideologies sweeping academia.