Michael Arnold Books

Autumn, 1643. Royalist renegade Captain Stryker is pitted against an implacable enemy as war rages across England. Ordered to recover a lost treasure vital to the success of the Royalist war effort...

Marston Moor

By Arnold Michael

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2 July 1644. Five armies converge outside York. It will be a battle for honour, glory, and the fate of three kingdoms. And it will pit two great leaders - Oliver Cromwell and Prince Rupert - direct...

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.