Lesley Sims Books

Alice Through the Looking Glass

By Lesley Sims, Mauro Evangelista

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The story of castles

By Lesley Sims

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This book traces the history of castles, from early wooden castles to stone castles.

A Christmas Carol

By Lesley Sims, Charles Dickens

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Starting Soccer First Skills

By Lesley Sims, Helen Edom

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The Usborne illustrated Alice

By Lesley Sims, Mauro Evangelista

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Illustrated Classics for Girls

By Lesley Sims, Louie Stowell

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Alice in Wonderland

By Lesley Sims, Mauro Evangelista

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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.