Livros
Audiolivros
The Why Cafe (Unabridged)
2019
The Big Five for Life (Unabridged)
2023
Überraschung im Café am Rande der Welt [Surprise at the Café on the Edge of the World]: Eine Erzählung vom Suchen und Finden (Das Café am Rande der Welt 4) (Unabridged)
2022
The Cafe on the Edge of the World: A Story About the Meaning of Life (Unabridged)
2024
Was ich gelernt habe [What I Have Learned]: Erkenntnisse für ein glückliches Leben [Findings for a Happy Life] (Unabridged)
2020
The Why Are You Here Cafe (Unabridged)
2020