Earl B. Lewis Books

Joe Joe s First Flight

By Natasha Tarpley, Earl B. Lewis

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Virgie Goes to School with Us Boys

By Elizabeth Fitzgerald Howard, Tony DiTerlizzi, Earl B. Lewis

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When Jimmy's mother won't let him have any moon pies for a snack, he takes a trip to the moon to get some.

This little light of mine

By Earl B. Lewis

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Mei Yi Jian Shan Liang de Shi Qing

By Jacqueline Woodson, Earl B. Lewis

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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.