Robert W. Walker Books

Absolute Instinct Jessica Coran Novels

By Robert W. Walker

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Killer Instinct

By Robert W. Walker

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Salem s Child

By Robert W. Walker

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The Namesake

By Robert W. Walker

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"Except for Douglas MacArthur, Theodore 'Roosevelt Jr.' is the most decorated soldier in American history, having earned his Congressional Medal of Honor and every other medal offered by the United...

Double edge

By Robert W. Walker

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Cold edge

By Robert W. Walker

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Gloria Estefan: Don't Stop!

By Robert W. Walker, Emilio Estefan Jr., Fernando Viquez, Frank Amadeo, Matthew Ralston, Mo Fitzgibbon

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Deja Blue

By Stephen Walker, Robert W. Walker

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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.