The Joyful Wisdom (aka The Gay Science)
Friedrich Wilhelm Nietzsche
The Communist Manifesto
Karl Marx & Friedrich Engels
Social Learning and the Baldwin Effect
David Papineau
Capital, Volume III
Karl Marx
The Reaction in Germany: A Fragment of a Frenchman
Mikhail Bakunin
Desire and Need
Murray Bookchin
Dialectic and Narrative
Thomas R. Flynn & Dalia Judovitz
Hegel: A Very Short Introduction
Peter Singer