Cathi Unsworth Books

Weirdo

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An atmospheric thriller about a teenage girl convicted of murder in a 1980s seaside town and the private investigator who reopens the case to discover that she may not have acted alone.

That Old Black Magic

By Cathi Unsworth

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Without the moon

By Cathi Unsworth

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Hush, hush, hush. Here comes the Bogeyman ... London during the long, dark days of the Blitz: a city outwardly in ruins, weakened by exhaustion and rationing. But behind the blackout, the old way o...

The Not Knowing

By Cathi Unsworth

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London Noir

By Cathi Unsworth

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London Noir

By Cathi Unsworth

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Londres Noir Folio Policier French Edition

By Gall Collectifs

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Opfer

By Cathi Unsworth

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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.