Jonathan Diaz Books

True Heroes

By Brandon Mull, Shannon Hale, Jonathan Diaz, Ally Condie

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True heroes

By Jennifer A. Nielsen, Ally Condie, Brandon Mull, Shannon Hale, Jonathan Diaz

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Twenty-one bestselling authors have written short stories to accompany Jonathan Diaz's fantastical photographs of children who are battling cancer.

Day in Love 2

By Jonathan Diaz

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20 Thoughts about You

By Briemm Nicole, Jonathan Diaz, J. Rosa

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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.