Domenico Losurdo who passed away in June has written a work that presents a history of the great philosopher, historians, and practitioners of Marxist-Leninism, asserting that prominent proponents and critics of Marxism-Leninism have failed to understand the significance of historical materialism in their analyses. Class Struggle: A Political and Philosophical History represents an important summation to a lifetime of research and political work to develop a political strategy to advance the interests of the working class and oppressed peoples. Losurdo provides a history that mines the theory and practice of Marx, Engels, Lenin, Trotsky, Stalin, Gramsci, Mao and Castro, among others, to see how they measure up to the point made in 1919 by the first successful communist revolutionary, Vladimir Lenin: "The class struggle is continuing-it has merely changed its forms."