Under the guiding principle of lumbung, the Indonesian collective ruangrupa is less concerned with individual works than with forms of collaborative work. As a reference work, companion and innovative art guide, the handbook offers orientation for these comprehensive processes; it is aimed at visitors to the exhibition in Kassel as well as people interested in collective practice. All the protagonists of documenta fifteen are presented with their work by international authors who are familiar with the respective artistic practice and cultural context. Under the title "lumbung", the book introduces the mindset and cultural background of documenta fifteen and illustrates the artistic work processes with numerous drawings. A chapter on Kassel shows and explains all the locations of the show, including the artists and collectives represented here.