David Lewis Books

The Beatles: Liverpool Landscapes

By David Lewis

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Illustrated History of Liverpool's Suburbs

By David Lewis

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Liverpool: Walks Through History

By David Lewis

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Explore Common Core State Standards Grade 4 Mathematics Teacher Edition

By David Lewis, Jonathan Kantrowitz

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James Bond meets Maisie Dobbs in this riveting new historical caper series featuring a gifted young socialist-turned-counterespionage spy on a World War II mission orchestrated by Winston Churchill...

A Jewel in the Crown

By David Lewis

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A Beacon in the Night

By David Lewis

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Like a female James Bond but with better one-liners, an unflappable British spy works alongside her aristocratic partner to root out homegrown Nazi collaborators in this riveting, action-packed WWI...

Think Smart, Act Smart

By David Lewis, Darren Bridger

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Learn to confidently devise effective solutions in any situation with this fantastic guide to getting things done by focusing your mind and honing your decision making skillsWould you like to weigh...

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.