Management Mess to Leadership Success: 30 Challenges to Become the Leader You Would Follow (Unabridged)
2019
Master Mentors Volume 2
2022
Master Mentors
2021
Parenting: Wrong Turns, Right Lessons: 30 INSIGHTS to Build Lifelong Influence and Relationships with Your Children
2025
Leader-Legende statt Management-Muffel : 30 Challenges für Chef*innen, die die Dinge geregelt kriegen wollen
2021
The Ultimate Guide to Great Mentorship
2023