Todd Johnson Books

The Sweet By and By: A Novel

By Todd Johnson

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Five very different Southern women meet in a nursing home and develop a friendship that resonates over the decades.

Low-carbon development for Mexico

By Todd Johnson

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Limbic Region VHS

By Todd Johnson, Tom Rowe, Frank Mancuso Jr., Tobias A. Schliessler, Armand Speca, George Horie, Patrick Ranahan

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Siberian Husky

By Todd Johnson, T. J. Wolf

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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.