Quellen

 Bildnachweis: Jason Kocheran on Unsplash, Tj Holowaychuk on Unsplash, Jon Flobrant on Unsplash, Radio Pink on Unsplash, Michal Matlon on Unsplash, Simon Berger on Unsplash, Maxime Roedel on Unsplash, Greg Rakozy on Unsplash, Alfonso Scarpa on Unsplash, Erico Marcelino on Unsplash, Patrick Tomasso on Unsplash, Diana Parkhouse on Unsplash, Aachal on Unsplash, Jon Tyson on Unsplash, Gritte on Unsplash, Rene Böhmer on Unsplash, Colton Sturgeon on Unsplash,  Franciszek Augustyniak on Unsplash.

Autorenbilder: Carlo Schmidt.
Illustrationen von Der geheimnisvolle Buchladen, Lilly & Lothar und Schicksal, Handwerk, Zeit, Beständigkeit: Maria Engel.