Mark P. Donnelly Books

Britain in the Second World War

By Mark P. Donnelly

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Tales From The Tower of London

By Daniel Diehl

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The Big Book of Pain

By Mark P. Donnelly, Daniel Diehl

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The title of "Haunted Houses, Guide to Spooky Creepy and Strange Places Across the USA" speaks for itself. It has a fair amount of stories and ghostly/haunted reports from all over the world from E...

Medieval Furniture

By Mark Donnelly, Daniel Diehl

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Death Taxes

By Mark P. Donnelly, Daniel Diehl

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Big Book of Pain

By Mark P Donnelly, Daniel Diehl

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Management Secrets from History

By Mark P Donnelly, Daniel Diehl

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Management secrets from history

By Daniel Diehl

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Eat Thy Neighbour

By Mark F Donnelly, Mark P. Donnelly, Mark Donnelly, Daniel Diehl

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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.