Johnny Carr Books

Orphan justice

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Christians are clearly called to care for orphans, a group so close to the heart of Jesus. In reality, most of the 153 million orphaned and vulnerable children in the world do not need to be adopte...

Orphan Justice

By Laura Captari, Johnny Carr

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Paper Daisies

By Johnny Carr, Kim Kelly, Rebecca Macauley

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Zoobu

By Johnny Carr

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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.