Eric Pfeffinger Books

The High-Impact Infidelity Diet: A Novel

By Lou Harry, Eric Pfeffinger

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Lost and foundling

By Eric R. Pfeffinger

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A modern retail fairy tale about growing up, self-reliance, and big big savings. Helps kids realize the importance of experiencing the world around them while not being afraid to explore new things.

The High-Impact Infidelity Diet

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A WHOLE NEW WAY TO CHEAT ON YOUR DIET Meet Brin and Martin, Cheryl and Doug, Dierdre and Randy. Three normal married couples who share a common problem: all of the husbands weigh over 300 pounds—a...

Red Bull Shorts Volume 1

By David Grimm, David Ives, John Guare, Dave Carley, Heidi Armbruster, Mike Anderson, Elizabeth Egloff, Liz Duffy Adams, Red Bull Theater, Sam Lahne

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High Impact Infidelity Diet

By Lou Harry, Eric Pfeffinger

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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.