Lesley Sims Books

Stories of Gnomes Goblins

By Lesley Sims, Christopher Rawson

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Stories of Dragons

By Lesley Sims, Christopher Rawson

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Story of Castles Usborne Young Reading

By Lesley Sims

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Story of Flying Usborne Young Reading Series One

By Lesley Sims

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Usborne Illustrated Classics for Boys

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Mon petit livre des chateaux forts

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Une collection à caractère didactique visant à faciliter l'apprentissage de la lecture. Les ouvrages sont répartis en quatre niveaux de lecture, identifiés à l'aide de chiffre de 1 à 4, selon le no...

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.