Sergio Bambaren: The Sound of Silence: A Book for the Brave (Der Klang der Stille: Ein Buch für Mutige)
Pascal came across the book this year and it inspired him. The peace of nature, but also people with the courage to speak up, are the subjects of the book.
https://www.piper.de/buecher/der-klang-der-stille-isbn-978-3-86612-389-2