John Mark Comer Books

ECPA BESTSELLER • A compelling emotional and spiritual case against hurry and in favor of a slower, simpler way of life—from the New York Times bestselling author of Practicing the Way“Prophetic, p...

Live No Lies

By John Mark Comer

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NEW YORK TIMES BESTSELLER • The bestselling author of The Ruthless Elimination of Hurry equips readers to recognize and resist the lies that seek to rob them of peace and freedom. “Live No Lies is...

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.