The book is a Bestseller at Managementboek
Number 1 in the Marketing category. And number 1 in the Advertising and Sales category.

The book Sales, Honest & Relaxed is a Bestseller at Managementboek, the Dutch bookshop for business and management books.
Number 1 in the 'Marketing' category. And number 1 in the 'Advertising and Sales' category.
Do you want to do sales in an honest and relaxed way too? Turn your customers into fans? And earn more revenue with less stress?
Then get started with this book. That is exactly why I wrote it. Order now and receive the hardcopy within one working day.
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Klaas Kroezen is an entrepreneur who trains, coaches and speaks. He wrote the #1 Dutch bestseller Sales, Honest & Relaxed and the new book Van klant naar fan (From customer to fan, November 2026). After 25+ years in sales with his own international market research firm, he helps organisations adopt the From customer to fan mindset: selling honestly and relaxed, and turning customers into fans with the whole team.
More about Klaas

