For Marx (French: Pour Marx) is a 1965 book by Louis Althusser, a leading theoretician of the French Communist Party. Althusser reinterprets the work of Karl Marx, proposing an epistemological break between the young Hegelian Marx, and the old Marx, the author of Capital. One of Althusser's chief works, For Marx was first published in 1965, with an English translation in 1969.