Sharing the latest update, courtesy of
@Sebastian Aigner:
Lecturers from the Technical University of Cologne have released their German-language “Learning Programming with Kotlin” book. The book targets newcomers who haven’t programmed before – so if someone is looking for a German-language introduction, this might be a solid recommendation:
https://www.hanser-fachbuch.de/fachbuch/artikel/9783446477124