Jonathan Hagar Books

Come along to Portugal

By Jonathan Hagar

Average: 0.00, 0 Ratings

Text and black and white photographs introduce the history, geography, people, and culture of Portugal.

I Call My Grandparents Mom and Dad

By Carilyn Rouyer, Jonathan Hagar

Average: 0.00, 0 Ratings

Jesus Is Better

By Jonathan Hagar, Bradley Cobb, Aaron Patterson, Gantt Carter, Roger Johnson

Average: 0.00, 0 Ratings

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.