Coffman Books

"Don't play at passion, Veronique." Nothing in the richly comfortable and sheltered life of beautiful Veronique de Vaudraye could have prepared her for Gilles Marsan. Veronique was welcome at the e...

The Rest Is Silence

By Virginia Coffman, Virginia, Coffman

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Devil'S Virgin

By Virginia Coffman, Coffman

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Mistress Devon

By Virginia Coffman, Virginia, Coffman, Coffman, Virginia

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382 pages ; 22 cm "Complete and unabridged."

The War To End All Wars

By Edward M. Coffman, Edward M, Coffman

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Too often, military histories are limited to descriptions and analyses of battles, from the perspective of opposing commanders. In this study, Edward Coffman places WW I within the context of the e...

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.

Coffman Books

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How to Convert ISBN-10 to ISBN-13 (and Vice Versa): A Complete Guide

What is an EAN and How Does it Relate to an ISBN?