Marian Keyes Books

Nothing Bad Ever Happens in Tiffany's: Pocket Penguins

By Marian Keyes

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The Other Side of the Story: Penguin Celebrations

By Marian Keyes

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Stella Sweeney is an ordinary woman living an ordinary life with her husband Ryan and their two teenage sons in Dublin. She works with -- or really for -- her terrifyingly ambitious sister Karen in...

The Brightest Star in the Sky

By Marian Keyes

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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.