Donna Jo Napoli Books

Words to Make a Friend

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A clever and innovative bilingual English/Japanese picture book about a Japanese girl and an American girl who prove you don't need to speak the same language to understand each other.When a y...

Words to Make a Friend

By Donna Jo Napoli, Naoko Stoop

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A clever and innovative bilingual English/Japanese picture book about a Japanese girl and an American girl who prove you don't need to speak the same language to understand each other.When a y...

The Prince of the Pond

By Donna Jo Napoli

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The Magic Circle

By Donna Jo Napoli

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When the Water Closes over My Head

By Donna Jo Napoli

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Stones in Water

By Donna Jo Napoli

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Sirena

By Donna Jo Napoli

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Running Away Aladdin Angelwings

By Donna Jo Napoli

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Know It All Aladdin Angelwings

By Donna Jo Napoli

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Playing Games Aladdin Angelwings

By Donna Jo Napoli

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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.