John Horgan Books

Criminal Investigation

By Bruce L. Berg

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The end of science

By John Horgan, Horgan John

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As a staff writer for Scientific American, John Horgan has a window on contemporary science unsurpassed in all the world. Who else routinely interviews the likes of Lynn Margulis, Roger Penrose, Fr...

The undiscovered mind

By Horgan John

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The Golden Years of Ginger Meggs

By James Charles Bancks, John Horgan

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Understanding Terrorism: Teach Yourself

By John Horgan, Keith Suter

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Irish media

By Horgan John

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Irish Media: A Critical History since 1922

By John Horgan

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Walking Away from Terrorism Cass Series on Political Violence

By Horgan John, John Horgan

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Walking Away from Terrorism Cass Series on Political Violence

By John Horgan

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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.