Jeffrey Brown Books

Loved and Lost: A Relationship Trilogy

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A pioneer of 21st-century graphic memoir, Jeffrey Brown captures timeless insights into love, intimacy, and vulnerability in three unforgettable relationship portraits.Twenty years ago, young paint...

Batman and Robin and Howard: Summer Breakdown

By Jeffrey Brown

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Damian and Howard are teaming up to face an all-new mastermind villain who is ready to demolish their favorite soccer spot!Summer is in session and that means all the neighborhood patrols, soccer g...

AEIOU: Any Easy Intimacy

By Jeffrey Brown

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The final chapter of Jeffrey Brown's so-called "Girlfriend Trilogy." AEIOU continues to explore the subtleties of relationships examined in Clumsy and Unlikely, concentrating this time on the diffe...

Darth Vader and Son 2014 Wall Calendar

By Jeffrey Brown

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Darth Vader & Family 2021 Family Calendar

By Jeffrey Brown

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We Have a Future Because God Has a Plan

By Jeffrey Brown

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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.