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Books by Holtes & Sietsma

Holtes & Sietsma is the pen name of Dutch authors Bert Holtes and Wop Sietsma.

Both authors were born in 1957, with Holtes born in Alkmaar, and Sietsma in Sneek, the Netherlands.

Holtes spent a number of years as a confectioner, marine (conscription), policeman, entrepreneur and executive in various industries while Sietsma worked as a secretary and a freelancer in the computer world before pursuing writing.

The two have been together for more than four decades, sharing a number of both good and bad experiences.

More about Holtes & Sietsma

Genre: Fantasy / SF

Born: 1957


Pseudonym: Holtes & Sietsma


BACK-UP Series

BACK-UP As far as the world stretches

Are you looking for something to read while unwinding on a relaxed vacation, or perhaps something to give as a gift or maybe just an exciting story to read while sitting on your couch?

If that’s the case, then this book is exactly what you need.

The first installment of the BACK-UP series, this 500-page book will undoubtedly live beyond your expectation.

A short summary of the book would ideally be written here, but why reveal that this action packed literary thriller comes with a dose of comedy, crime, global intrigue, romance and nail-biting tension with unexpected twists and turns?

Is this Scifi? Yes. No. Maybe…Who knows!

This is the story that begins and ends at the Peace Palace.

Author: Holtes & Sietsma
First Release: 2019
ISBN: 978-1081394868
Publisher: Independently published