Mavis Doriel Hay Books

The Santa Klaus murder

By Mavis Doriel Hay

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The Santa Klaus Murder

By Mavis Doriel Hay

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"Aunt Mildred declared that no good could come of the Melbury family's Christmas gatherings at their country residence Flaxmere, and when Sir Osmond Melbury, the family patriarch, is discovered--by...

Murder Underground

By Mavis Doriel Hay

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Murder Underground

By Mavis Doriel Hay, Patience Tomlinson

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The Santa Klaus Murder

By Mavis Doriel Hay

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Murder Underground

By Mavis Doriel Hay

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Death On The Cherwell

By Mavis Doriel Hay

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Death On The Cherwell

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Santa Klaus Murder 16pt Large Print Edition

By Mavis Doriel Hay

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Death On The Cherwell

By Mavis Doriel Hay, Patience Tomlinson

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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.