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 social scientist. He explains alienation, historical materialism, the economic theory of Capital , and Marx's idea of communism, in plain English, and concludes with an assessment of Marx's legacy. This book is intended for students from sixth-form upwards of politics, economics, philosophy, history, Marxism.