The book "Minimal Morality" by Martin Wagner offers a well-founded analysis of German-speaking rap and highlights its cultural and societal dimensions. In this academic work, the influence of music on art and design is examined, with the author critically reflecting on various aspects of rap culture. With a length of 156 pages and in a handy paperback format, the first edition of the work was published in 2025. The language of the book is German, making it accessible to a wide audience interested in the intersections of music, art, and society. Wagner addresses the moral questions raised in the context of rap in his theory, providing a deep insight into the subject matter. This non-fiction book is aimed at readers who are interested in the development and challenges of German-speaking rap and wish to understand the cultural implications of this music genre.