E. K. Johnston Books

Dungeons Dragons

By E. K. Johnston, Jaume Munoz Cunill

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Star Wars Ahsoka

By E. K. Johnston, Gema Bonnin Sanchez

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Three sides of a heart

By Natalie C. Parker

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Three Sides of a Heart

By Lamar Giles, Julie Murphy, Justina Ireland, E. K. Johnston, Katie Cotugno, Rae Carson, Garth Nix, Renee Ahdieh, Tessa Gratton, Brenna Yovanoff, Bethany Hagen, Veronica Roth, Natalie C. Parker, Sabaa Tahir, Alaya Dawn Johnson, Brandy Colbert

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Aetherbound

By E.K. Johnston

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A thought-provoking new YA space adventure from the #1 New York Times bestselling author of Star Wars: Ahsoka.Set on a family-run interstellar freighter called the Harland and a mysterious remote s...

The Afterward

By E.K. Johnston

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"I love this book so very much."—Robin LaFevers, New York Times bestselling author of the His Fair Assassin trilogyRomantic high fantasy from the bestselling author of Star Wars: Ahsoka and E...

The Afterward

By E.K. Johnston

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"I love this book so very much."—Robin LaFevers, New York Times bestselling author of the His Fair Assassin trilogyRomantic high fantasy from the bestselling author of Star Wars: Ahsoka and E...

The Story of Owen

By By E. K. Johnston

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Dragons. In modern day North America. How can sixteen-year-old Owen fight back when he can barely pass algebra? It takes a village to train a dragon slayer, and Owen needs all the help he can get.O...

Prairie Fire

By E. K. Johnston

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Dragons terrorize modern day North America in this brilliant follow-up to the critically acclaimed Story of Owen.Seventeen-year-old dragon slayer Owen and his bard, Siobhan, are set to join the Oil...

Story of Owen

By E. K. Johnston

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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.