In 1972, in a situation of countless splits in the so-called "Marxist-Leninist movement", the unification of the KAB(ML) and KPDML(RW) to form the KABD (Communist Workers' League of Germany) was a forward-looking signal! The task was to create the conditions on all sides for the foundation of a Marxist-Leninist party. It was the task of RW 10 to clarify the basic questions of party building with this aim and to determine the fundamental sides of party building. An excellent writing to introduce Marxist-Leninist party building, in its 5 basic pages: Marxism-Leninism, the ideological basis of the Party. The programme, the political line of the party. The organisation, the instrument of the practical activity of the party. Democratic centralism, the organisational principle of the Party. Criticism and self-criticism, the party's law of development.