Jessie Sima Books

Harriet loves costumes. She wears them to the dentist, to the supermarket, and most importantly, to her super-special dress-up birthday party. Her dads have decorated everything for the party and H...

Hardly Haunted

By Jessie Sima

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Das kleine Walhorn

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Soy un narval

By Jessie Sima, Jaime Valero Martinez

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Nimbo y la estrella fugaz

By Jessie Sima, Jaime Valero Martinez

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Soc un narval

By Jessie Sima, Maria Bertran

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Nimbus i l estrella fugac

By Jessie Sima, Maria Bertran

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Not Quite Narwhal

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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.