Josie Portillo Books

This Place Far Away

By Josie Portillo, Ruth Campbell

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The witch's glass

By Holly Grant

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Members of The League of Beastly Dreadfuls venture to the most forbidden back alleys of Nowhere Special seeking an unbreakable glass cabinet that holds the key to Anastasia's missing grandfather.

This Place Far Away

By Josie Portillo, Ruth Campbell

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Guerra Que Al Fin Gane

By Josie Portillo, Kimberly Brubaker Bradley

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Cities of the World

By Josie Portillo, Becky Davies

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Cities of the World

By Josie Portillo, Becky Davies

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Cities of the World

By Josie Portillo, Becky Davies

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Halloween Story

By Scott Lisbin, Josie Portillo

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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.