Caroline Castle Books

Brown Bear s wonderful secret

By Caroline Castle

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Da zong xiong de mi mi

By Caroline Castle

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Para todos los ninos

By Caroline Castle

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"Quienquiera que seamos, dondequiera que estemos, estos son los derechos de todos los niños que habitamos bajo el sol, la luna y las estrellas"--Page 4 of cover.

Rosie Pugh and the great clothes war

By Caroline Castle

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Gentil Nanuk

By Caroline Castle

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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.