David Heatley Books

My Brain is Hanging Upside Down

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One of the most promising young talents in cartooning makes his debut with a dazzling collection—part freakish dreamlife, part quirk-o-rama autobiography, all genius. Long a fixture in comics anth...

Qualification

By David Heatley

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From the author of My Brain Is Hanging Upside Down, a new graphic memoir brimming with black humor, which explores the ultimate irony: the author's addiction to 12-Step programs.“Say what you mean,...

Otis Dooda

By Ellen Potter, David Heatley

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MY BRAIN IS HANGING UPSIDE DOWN

By David Heatley

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Mijn brein hangt op z n kop

By David Heatley

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My Brain Is Hanging Upside Down

By David Heatley

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Deadpan 2

By David Heatley

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Otis Dooda

By Ellen Potter, David Heatley

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Otis Dooda

By Ellen Potter, David Heatley

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Dead Pan 1

By David Heatley

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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.