Madeleine L Engle Books

A Wrinkle in Time

By Madeleine L Engle

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The young unicorns

By Madeleine L Engle

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The Prince of Egypt

By Madeleine L Engle

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A wrinkle in time

By Madeleine L Engle

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Dragons in the waters

By Madeleine L Engle

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Simon and the O'Keefes try to find a stolen painting and a murderer, all while trapped aboard a ship. A stolen heirloom painting of Simon Bolivar, a shipboard murder, and the Quiztanto Indians com...

Dragons in the waters.

By Madeleine L Engle

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The young unicorns.

By Madeleine L Engle

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Many waters.

By Madeleine L Engle

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The Other Side of the Sun

By Madeleine L Engle

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The Love Letters

By Madeleine L Engle

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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.