The vocational education and training landscape is undergoing change in the wake of demographic and technological developments. Discernible signs of this shift include fewer trainees whose prior learning is, however, increasingly heterogeneous in nature, more demanding training contents, and matching problems on the training market that are beginning to perpetuate themselves. What are the impacts of all this on collaboration between the cooperation partners involved in vocational education and training? Where are new ways of working together coming into being, and how are existing cooperation arrangements being developed further in order to ensure high-quality training? The articles included in the present issue highlight the reasons behind various types of cooperation and reveal areas of potential for learners and learning venues.