Ryan Chapman Books

Conversation sparks

By Ryan Chapman

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Over 350 bits of trivia intended to help start conversations.

Twisted Madness Apocalyptic Evolution

By Ron W. Chapman, Ryan Chapman

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Willow

By Ryan Chapman, Ron Chapman

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Longest Pun War

By Ryan Chapman, Adam Hill

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The Audacity

By Ryan Chapman

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A bracing satire about the implosion of a Theranos-like company, a collapsing marriage, and a billionaires’ “philanthropy summit,” for fans of Hari Kunzru and The White Lotus.In 7...

Adventures of Henny

By Ryan Chapman, Emma Whitelaw

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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.