Gavin Kitching 
Karl Marx and the Philosophy of Praxis (RLE Marxism) [PDF ebook] 

In this major study, first published in 1988, Professor Kitching builds on recent scholarship on Marx and Wittgenstein to provide an incisive, readable account and critique of the whole of Marx’s work. He presents the philosophical, economic, and political Marx as one thinker, and argues that the key to understanding Marx is his commitment to a ‘philosophy of praxis’. This sees thought as just part of that purposive activity (or praxis) which distinguishes human beings from other creatures. This is the first book to analyse all of Marx’s thought from a Wittgenstein perspective; in doing so, it clarifies and deepens our understanding of Marx.