Since beginning publication in1964, The Socialist Register has been one of the most important sources of engaged, critical, and influential theoretical interventions on the socialist left. Released as an annual with a focus on publishing rigorous, sustained pieces that take up particular themes, it has always been committed to developing an independent, nonsectarian relationship with Marxism.This volumethe Register's first-ever readergrapples with the question of whether political organization is a necessary part of the struggle by the working-class to overthrow capitalism. In pieces published over the course of publication's entire history contributors, from Ralph Miliband to Jean-Paul Satre, examine various aspects of this theme.