Mandy O'Sullivan Books

Crochet To Calm: Stitch And De-Stress With 18 Simple Crochet Patterns

By Mandy O'Sullivan, Erica Smith, Interweave Editors

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**50+ mandalas in fresh, modern colors!** In __Modern Crochet Mandalas__, you'll find more than 50 uniquely delightful pieces to stitch up whenever the mood strikes. Bursting with imagination and a...

12 meses de ganchillo con RedAgape

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12 Months of Crochet with RedAgape

By Mandy O Sullivan

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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.