Mark Hodder Books

The Return of the Discontinued Man

By Mark Hodder

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The Return of the Discontinued Man The Burton Swinburne Adventures

By Howard Hughes

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RISE OF THE AUTOMATED ARISTOCRATS

By Howard Hughes

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Zenith Lives Obverse Quarterly

By Michael Moorcock

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Strange Affair of Spring Heeled Jack The

By Mark Hodder, Gerard Doyle

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Following Queen Victoria's assassination in 1840, England's rulers had been receiving guidance from Abu El Yezdi, a dead mystic, but when high-ranking officials are kidnapped it is up to Sir Richar...

The rise of the automated aristocrats

By Mark Hodder

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"Sir Richard Francis Burton's expedition has returned from the future, bringing with it knowledge of technologies that must remain secret if history is to proceed as it should. However, when one of...

The Strange Affair of Spring Heeled Jack

By Mark Hodder

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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.