books.google.de - Peter Singer identifies the central vision that unifies Marx's thought, enabling us to grasp Marx's views as a whole. He sees him as a philosopher primarily concerned with human freedom, rather than as an economist or a social scientist. He explains alienation, historical materialism, the economic theory...http://books.google.de/books/about/Marx_A_Very_Short_Introduction.html?hl=de&id=U7sXlZIx7pkC&utm_source=gb-gplus-shareMarx: A Very Short Introduction
