Caroline Graham Books

The killings at Badger s Drift

By Caroline Graham

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Death of a Hollow Man

By Caroline Graham

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Murder at Madingley Grange

By Caroline Graham

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"Having agreed to manor-sit rich Aunt Maude's stately Madingley Grange, Simon Hannaford and his sister Laurie decide to put the gloomy old estate to profitable use. So they hire a bogus boozing but...

Written in Blood Chief Inspector Barnaby Series No4

By Caroline Graham

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Death of a hollow man

By Caroline Graham

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Murder at Madingley Grange

By Caroline Graham

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Written in Blood

By Caroline Graham

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Murder at Madingley Grange.

By Caroline Graham

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Death in disguise

By Caroline Graham

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The Envy of the Stranger

By Caroline Graham

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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.