10x Is Easier Than 2x: How World-Class Entrepreneurs Achieve More by Doing Less (Unabridged)
2023
Who Not How: The Formula to Achieve Bigger Goals Through Accelerating Teamwork (Unabridged)
2020
The Gap and the Gain: The High Achievers' Guide to Happiness, Confidence, and Success (Unabridged)
2021
Das GAP-and-GAIN-Konzept
2023
The Entrepreneur’s Edge: Turning Purpose into Profit and Fulfillment (Unabridged)
2026
The Greater Game: Your 100x Blueprint for Exponential Growth, Freedom, and Legacy (Unabridged)
2026