Joel Warner Books

The Humor Code

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Part road-trip comedy and part social science experiment, a scientist and a journalist travel the globe to discover the secret behind what makes things funny, questioning countless experts, includi...

The Curse of the Marquis de Sade

By Joel Warner

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NEW YORK TIMES EDITORS’ CHOICE • The captivating, deeply reported true story of how one of the most notorious novels ever written—Marquis de Sade’s 120 Days of Sodom—la...

The Curse of the Marquis de Sade

By Joel Warner

Average: 0.00, 0 Ratings

NEW YORK TIMES EDITORS’ CHOICE • The captivating, deeply reported true story of how one of the most notorious novels ever written—Marquis de Sade’s 120 Days of Sodom—la...

Humor Code

By Peter McGraw, Joel Warner

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Humor Code

By Peter McGraw, Joel Warner

Average: 0.00, 0 Ratings

The Curse of the Marquis de Sade

By Joel Warner

Average: 0.00, 0 Ratings

NEW YORK TIMES EDITORS’ CHOICE • The captivating, deeply reported true story of how one of the most notorious novels ever written—Marquis de Sade’s 120 Days of Sodom—la...

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.