Katharine McMahon Books

Footsteps

By Katharine McMahon

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Confinement

By Katharine McMahon

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1849: Bess Hardemon arrives at the grimly Dickensian Priors Heath school, little knowing that she will one day end up as an inspiring and legendary headmistress - but at considerable personal cost....

After Mary

By Katherine McMahon, Katharine McMahon

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After Mary

By Katharine McMahon

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The Rose Of Sebastopol

By Katharine McMahon

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The rose of Sebastopol

By Katharine McMahon

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The crimson rooms

By Katharine McMahon

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Season of Light

By Katharine McMahon

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Season of Light begins in 1788, in the heady days just before the French revolution, when Paris is fizzing with new ideas about liberty and equality. Asa Ardleigh, the impressionable 19-year-old da...

The Crimson Rooms

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Season of light

By Katharine McMahon

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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.