Paul Simpson Books

Mermaid Coloring Book for Kids Ages 2 4

By Paul Simpson

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Farscape The Illustrated Season 2 Companion Farscape The Illustrated Season Companion

By Paul Simpson

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Farscape The Illustrated Season 3 Companion Farscape The Illustrated Season Companion

By Paul Simpson

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Smallville: The Official Companion Season 1

By Paul Simpson

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Smallville: The Official Companion Season 4

By Craig Byrne

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Smallville, the TV show featuring the teenage years of Clark Kent and his friends, continues to be one of the hottest shows on TV today. Looking at what was the highest-rated Smallville season so f...

The Rough Guide to Cult TV

By Paul Simpson

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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.