Everyone Deserves a Great Manager (Unabridged)
2019
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
Marketing Mess to Brand Success : 30 Challenges to Transform Your Organization's Brand (and Your Own)!
2021
Master Mentors Volume 2
2022