William Potter Books

When intergalactic evil strikes, heroic astronauts, aliens, and robots spring into action! This ultimate guide shows readers how to create bizarre extraterrestrial life-forms, design amazing robots...

Drawing monstrous heroes

By William Potter

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Monsters come in all sizes and textures! Soupy concrete, spiky scales, and rough rocks are just a few of the bizarre body types this ultimate guide contains. Readers will design their own monstro...

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.