Learning venues and the cooperation between them are of fundamental significance to VET and are enshrined in law in the Vocational Training Act. They are a unit and have a reciprocal relationship. Learning venues and the cooperation between them have, however, been an object of controversial debate since their introduction as specialist terms. They are implemented variously in practice and categorised differently in theory. An elemental change is also occurring in the wake of organisations being restructured, digitalisation, and the expansion of informal continuing training. Learning venues are pluralising as well as differentiating and delimiting themselves. Conventional cooperation arrangements between learning venues are consequently becoming more extensive. This article traces these developments and concludes by indicating the significance of the learning venue concept for a permeable education and training system.