Heller Joseph Books

Die bambergischen Munzen

By Heller Joseph

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Picture This

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Now and then

By Heller Joseph, Joseph Heller

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The demented Army Air Force of Catch-22, the lethal business world of Something Happened, the dysfunctional family of Good as Gold - all these, we have assumed, had their roots in Joseph Heller's o...

No laughing matter

By Heller Joseph

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No laughing matter

By Heller Joseph, Joseph Heller

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SOMETHING HAPPENED

By Heller Joseph

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Catch 22

By Heller Joseph

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British policy towards the Ottoman Empire, 1908-1914

By Heller Joseph

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Stern Gang

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Portrait of an Artist As an Old Man

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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.