Mary Jo Putney Books

Thunder and Roses

By Mary Jo Putney

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Once a soldier

By Mary Jo Putney

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Once a Rebel

By Mary Jo Putney

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As Washington burns, Callista Brooke is trapped in the battle between her native England and her adopted homeland. She is on the verge of losing everything, including her life, when a handsome Engl...

Once a scoundrel

By Mary Jo Putney

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The disgraced son of a proud naval dynasty embarks on a dangerous mission in hostile waters to rescue an earl's kidnapped daughter from life as a harem slave.

Once Dishonored

By Mary Jo Putney

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Once a Laird

By Mary Jo Putney

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Silver Lady

By Mary Jo Putney

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The Rake

By Mary Jo Putney, Mark Meadows

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Loving a Lost Lord

By Mary Jo Putney

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The rake

By Mary Jo Putney

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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.