Doug Allyn Books

It all starts when Mick Shannon Irish Mick loses to a knockout punch. His manager had bet heavy, and now Mick owes the mob, and more specifically, Moishe Abrams, who runs the jukes and collections...

Fenetres sur crimes

By Doug Allyn, Jacques Baudou

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Juke box Cadillac French Edition

By Doug Allyn

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Lawyer Lifeguard

By James Patterson, Doug Allyn

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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.

Doug Allyn 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?