Sales without slick tricks, with real connection
Sales, Sincere and Relaxed from Klaas Kroezen is a practical sales book that shows how selling can be sincere, calm, and human. The book is intended for professionals who want to learn how to sell without getting lost in pushy tactics.
With more than 25 years of international experience in sales, entrepreneurship, and customer success, Kroezen shares effective methods for sustainable customer relationships and trust—without scripts or gimmicks.
Benefits of this book
- Learn to sell without manipulation
- Build genuine customer connection
- Strengthen calmness and self-confidence in sales conversations
- Directly applicable, practical tips
- Suitable for entrepreneurs, sales professionals, and customer success managers
Target audience
Sales, Sincere and Relaxed focuses on entrepreneurs, sales professionals, account managers, consultants, and customer success managers who want to improve their sales skills without pushy sales talk.
Even if you don’t consider yourself a traditional salesperson, this book offers an accessible, relaxed approach to sales.
About the author — Klaas Kroezen
Klaas Kroezen generated tens of millions of euros in sales across 21 countries. He worked with companies such as Google, Microsoft, ING, and Samsung, and he now trains teams and professionals in the fields of sales and customer contact.



