Organic Centralism
- (Engels) A Letter to a Comrade on Our Organisational Tasks
- (Engels) The problem of culture
- (Engels) Party and Class
- (Engels) The Democratic Principle
- (Engels) Communist Organisation and Discipline
- (Engels) General Guidelines on the Foundations of Party Organization
- (Engels) [GM1] Theory and Action in Marxist Doctrine
- (Italiaans) "Politique d'abord!"
- (Engels) Notes for the Theses on the Question of Organization
- (Engels) Considerations on the Organic Activity of the Party when the General Situation is Historically Unfavourable
- (Engels) Theses on the Historical Task, Action, and Structure of the World Communist Party, According to the Positions Forming the Historical Patrimony of the Communist Left for More Than Half a Century ("Naples Theses")
- (Engels) Supplementary Theses on the Historical Task, Action, and Structure, of the World Communist Party ("Milan Theses")
- (Engels) The Communist Party in the Tradition of the Left
- (Engels) The Party Does Not Arise From “Circles”
- (Italiaans) Comunismo e Centralismo organico
- (Engels) Deadly Embraces
- (Engels) Lenin, the Organic Centralist