Cathy Porter Books

Visions of Liberty

By Cathy Porter, Bob Adelman, Larissa Vasilieva, Ira Glasser

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Kremlin Wives

By Cathy Porter, Larisa Nikolaevna Vasil Eva

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Living Souls

By Cathy Porter, Dmitry Bykov

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"In a world a few decades from now, Russia has lost its influence and descended into a farcical civil war. With an extreme right wing cult in power, racial tensions have divided the country into th...

Alexandra Kollontai

By Cathy Porter

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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.