Allen Wood 
Karl Marx [PDF ebook] 

This is one of the most respected books on Marx’s philosophical thought. Wood explains Marx’s views from a philosophical standpoint and defends him against common misunderstandings and criticisms. All the major philosophical topics in Marx’s work are considered: the central concept of alienation; historical materialism and Marx’s account of social classes; the nature and social function of morality; philosophical materialism and Marx’s atheism; and Marx’s use of the Hegelian dialectical method and the Marxian theory of value.