Sally Lewis Books

Retrouver sa silhouette apres une grossesse

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"Mentalizarse y tomar la decision de dejarlo. Dejar de fumar para Dummies constituye una aproximación muy completa para ayudar a los fumadores que lo quieren dejar. Para ello, te explica de que for...

Plan De 10 Semanas Para Recuperar La Figura Despues Del Parto back in Shape the 10 week Post Baby Recovery Plan

By Sally Lewis

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50 things you can do today to increase your fertility

By Sally Lewis

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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.