Jon L. Dunn Books

Birding is the fastest growing wildlife-related outdoor activity in the U.S., with at least a million new birders a year estimated to join an already robust group some 80 million strong. For these...

National Geographic Field Guide to the Birds of Eastern North America

By Jonathan Alderfer, Editors Jon L. Dunn

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New enthusiasts are flocking in record numbers to the fascinating pastime of birding. National Geographic has been meeting their need for clear and accurate information for 25 years with our millio...

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.

Jon L. Dunn Books

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How to Convert ISBN-10 to ISBN-13 (and Vice Versa): A Complete Guide

What is an EAN and How Does it Relate to an ISBN?