# Berthold Gunster

Canonical: https://www.bookquiver.com/berthold-gunster

JSON version (same data): https://www.bookquiver.com/berthold-gunster.json

- Books: 3
- Languages: 5

## Books

- [Flip Thinking](https://www.bookquiver.com/berthold-gunster/flip-thinking) — 2023-02-23