Christian Klaver Books

Armadas in the Mist

By Christian Klaver

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Armadas in the Mist

By Christian Klaver

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Armadas in the Mist

By Christian Klaver

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Sherlock Holmes and Count Dracula

By Christian Klaver

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In this thrilling supernatural mystery, Sherlock Holmes and Count Dracula must join forces to banish a terrible enemy...Sherlock Holmes is dead. His body lies in a solitary grave on the Sussex Down...

Sherlock Holmes and Mr Hyde

By Christian Klaver

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A deftly crafted, scintillating mash-up of Victorian mystery and horror – Sherlock Holmes and Mr Hyde encounter villains with unfathomable, terrifying abilities…1903. A darkness has de...

Sherlock Holmes and Dorian Gray

By Christian Klaver

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Mysterious socialite Dorian Gray is at the centre of Sherlock Holmes’ latest investigation in this astonishing, uncanny mash-up of Victorian mystery and horror.1903. Sherlock Holmes and Dr Jo...

Sherlock Holmes and Count Dracula

By Christian Klaver

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Told through four interlinked cases, this Gothic horror mystery sees Sherlock Holmes and Count Dracula join forces to banish a terrible enemy.1902. Sherlock Holmes’s latest case begins with a...

Sherlock Holmes and Mr Hyde

By Christian Klaver

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A deftly crafted, scintillating mash-up of Victorian mystery and horror – Sherlock Holmes and Mr Hyde encounter villains with unfathomable, terrifying abilities…1903. A darkness has de...

Shadows over London

By Christian Klaver

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Adventure of the Lustrous Pearl

By Christian Klaver

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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.