Nothing in the title or the structure of Franck Fischbach's Philosophies de Marx suggests a return to the Marx/Spinoza relation explored in La Production des hommes: Marx Avec Spinoza. The title plainly states that it is a consideration of Marx's philosophy, and the book is organized to consider Marx's philosophical practice through three different philosophical intersections, hence the plural, the philosophy of activity, social philosophy, and critical philosophy. Despite this focus on Marx, and Fischbach's turn away from the specificity of the Marx/Spinoza relation in later works that have broadened the considerations of questions of activity and the social to include everything from Heidegger to Dewey, the book on Marx ends up returning to the productivity of the Marx/Spinoza relation in the margins.