Jeff Massey Books

Monty Python FAQ

By Brian Cogan, Jeff Massey, Chris Barsanti

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Six Seasons And A Movie

By Brian Cogan, Jeff Massey, Chris Barsanti

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Audacious, weird, and icily ironic, Community was a kind of geek alt-comedy portal, packed with science fiction references, in-jokes that quickly metastasized into their own alternate universe, dar...

Six Seasons and a Movie

By Brian Cogan, Jeff Massey, Chris Barsanti

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The Pendulum Swings

By Jeff Massey

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Warlord of OZ

By Jeff Massey, Miguel Mendonca, Zenescope Entertainment Staff

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Reign of the Witch Queen

By Ken Lashley, Jeff Massey, Joe Brusha, Antonio Bifulco

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Tales from OZ Volume 2

By Jeff Massey, Noah Salonga, Zenescope Entertainment Staff

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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.