Tonke Dragt Books

The letter for the king

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On the night of his final vigil before being knighted, Tiuri answers a request to deliver an urgent letter to a distant kingdom across the Great Mountains--a journey that will threaten his life and...

The towers of February

By Tonke Dragt

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A fourteen-year-old boy finds himself transported to another dimension and unable to remember his past.

The towers of February

By Tonke Dragt

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A fourteen-year-old boy finds himself transported to another dimension and unable to remember his past.

The Letter for the King

By Tonke Dragt

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The Letter for the King

By Tonke Dragt

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The secrets of the Wild Wood

By Tonke Dragt

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The Secrets of the Wild Wood

By Tonke Dragt

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A stunning gift edition of the Sunday Times and Telegraph Children’s Book of the Year—the “action-packed” sequel to The Letter for the King (Daily Mail) Young Sir Tiuri se...

The Letter For the King

By Tonke Dragt

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A NETFLIX ORIGINAL SERIES For fans of Tolkien-inspired fantasy and Arthurian mythos comes this prize-winning fantasy adventure about one knight’s battle against evil It is the dead of ni...

The Letter for the King

By Laura Watkinson, Tonke Dragt

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Der Brief fur den Konig

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Die Übersetzung wurde gegenüber dem niederländischen Original geringfügig gekürzt

How to Convert ISBN-10 to ISBN-13 (and Vice Versa): A Complete Guide

If you’re in the world of books—whether as a publisher, librarian, bookseller, or avid collector—you’ve likely come across the terms ISBN-10 and ISBN-13. Understanding these formats and knowing how to convert between them is essential for maintaining consistency and compatibility in book records. In this post, we’ll cover everything you need to know about ISBN conversions, step by step.

What is an EAN and How Does it Relate to an ISBN?

If you’ve ever purchased a product online or in a store, you’ve likely come across a barcode. Behind these barcodes lies a standardized system that makes modern commerce possible. Two key codes often encountered are the EAN (European Article Number) and ISBN (International Standard Book Number). But what are they, how are they connected, and why are they so crucial? Let’s explore.