ndsätze des Kommunismus) is a brief 1847 work written by Friedrich Engels, the co-founder of Marxism. It is structured as a catechism, containing 25 questions about communism for which answers are provided. In the text, Engels presents core ideas of Marxism such as historical materialism, class struggle, and proletarian revolution. Principles of Communism served as the draft version for the Communist Manifesto.