David Pepper Books

The Geography of peace and war

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The Geography of Peace and War

By David Pepper, Alan Jenkins

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Roots of modern environmentalism

By David Pepper

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Tommy Mollie and the Hallway of Doors 2

By David Pepper

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Ghost Hunting with Tommy Mollie

By David Pepper

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As the American presidential campaign season begins, veteran journalist Jack Sharpe uncovers dark money and foreign influence at work, earning him the enmity of powerful forces that will put the pe...

Laboratories of Autocracy

By David Pepper

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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.