Ryan Estrada Books

No Rules Tonight

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From the creators of Banned Book Club comes a young adult graphic novel about unveiling secrets, confessing your crushes, and finding yourself: all in the mountains of South Korea on Christmas Eve....

No Rules Tonight

By Ryan Estrada, Kim Hyun Sook

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Occulted

By Ryan Estrada, Jeongmin Lee, Amy Rose

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Student Ambassador

By Ryan Estrada, Axur Eneas

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Banned Book Club

By Ryan Estrada, Ko Ko, Kim Hyun Kim

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Student Ambassador

By Ryan Estrada, Axur Eneas

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Garfield 2

By Ryan Estrada, Axur Eneas, Sarah Graley

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Garfield 1

By Ryan Estrada, Axur Eneas, Sarah Graley

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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.