Robert Wallace Books

An unprecedented history of the CIA's secret and amazing gadgetry behind the art of espionageIn this look at the CIA’s most secretive operations and the devices that made them possible, Spycr...

Clara's Secret and Other Bristol Mysteries

By Robert Wallace

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Doctrines of Predestination, Reprobation, and Election

By Robert Wallace

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26 Duets for Trumpets in B-Flat

By Robert Wallace

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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.