Tessa De Loo Books

Kata, the daughter of a Jewish father who fled Budapest during World War II, is drawn to a young man named Stefan and later learns that he is her half brother, a situation that is complicated by th...

A Bed in Heaven

By Tessa De Loo

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The Twins

By Tessa De Loo

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The Twins

By Tessa De Loo, Tessa De-Loo, Loo, Tessa De

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Two elderly women, one Dutch and one German, meet by chance at the famous health resort of Spa. They recognize in the other their twin sister they believed to be lost. They begin to tell each other...

Die Madchen von der Susswarenfabrik

By N A

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Toen zat Lorelei nog op de rots

By Tessa De Loo

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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.