Howard McWilliam Books

Superstar entertainer John Cena's second picture book in the #1 New York Times bestselling series features a high-octane story--starring the truck who never gives up, Elbow Grease!Elbow Grease may...

Elbow Grease: Fast Friends

By Howard McWilliam, John Cena

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There's a new truck on the block in John Cena's third picture book in the #1 New York Times bestselling Elbow Grease series, featuring the truck who never gives up!Elbow Grease and his monster truc...

Problem Solved

By Howard McWilliam, Jenna Grodzicki

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Lying Lion

By Howard McWilliam, Megan Hoyt

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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.