Patrick Guest Books

Rabby the Brave

By Patrick Guest, Tom Jellett

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Windows

By Patrick Guest

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Nan sheng nu sheng ke yi yi qi wan

By Patrick Guest

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To be in the Ricker Racker Club you have to be brave. You have to be kind. You have to not be a girl ... but some people are better than others at being both kind and brave. Patrick Guest and Natha...

Second Sky

By Patrick Guest

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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.