John H. Arnold Books

History: A Very Short Introduction

By John H. Arnold

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Belief and Unbelief in Medieval Europe

By JOHN H. ARNOLD

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The Day Christ Lied John 7

By John H. Arnold

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Inquisition and Power

By John H. Arnold

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"Inquisition and Power reformulates the historiography of heresy and inquisition by focusing on depositions taken from the Cathars, a religious sect that opposed the Catholic church and took root i...

Geschichte. Eine kurze Einfuhrung.

By John H. Arnold

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Tarih

By John H. Arnold

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Making of Lay Religion in Southern France C. 1000 1350

By John H. Arnold

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Oxford Handbook of Medieval Christianity

By John H. Arnold

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xiv, 580 pages : 25 cm

The Journey

By John H. Arnold

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Inquisition and Power

By John H. Arnold

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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.