Mary Jo Putney Books

Lady of Fortune

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Reissued and repackaged for the very first time since 1988, Lady of Fortune is a classic story of one woman’s perseverance and strength in the face of insurmountable odds in the wake of the F...

One Perfect Rose Lost Lords

By Mary Jo Putney

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Dragon Lovers

By Mary Jo Putney

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Dragon Lovers

By Mary Jo Putney

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Once a Spy

By Mary Jo Putney

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Once a Laird

By Mary Jo Putney

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Once a Scoundrel

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.