John Brownjohn Books

The Labyrinth of Dreaming Books

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Over two hundred years ago Bookholm, the City of Dreaming Books, was destroyed by a catastrophic firestorm. Optimus Yarnspinner, who witnessed this disaster, has since become Zamonia's greatest wri...

The Swiss, The Gold And The Dead: How Swiss Bankers Helped Finance the Nazi War Machine

By Jean Ziegler

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Startling revelations that Switzerland helped to bankroll Nazi Germany's war effort, as well as Swiss intransigence in the face of redress claims by Holocaust survivors, have shaken Switzerland's i...

Germany and the Second World War: Volume 5: Organization and Mobilization of the German Sphere of Power. Part I: Wartime Administration, Economy, and ... of Power Vol 5

By Bernhard Kroener

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Germany and the Second World War: Volume 6, The Global War

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Auntie Poldi and the Lost Madonna

By Mario Giordano, John Brownjohn

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Eduard's Homecoming

By John Brownjohn, Peter Schneider

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"Eduard, a German scientist and child of postwar Berlin, has long been settled in California with his American wife, Jenny, and their three children when he discovers that he has inherited an apart...

The Hidden Hitler

By Susanne Ehlert, Lothar Machtan, John Brownjohn

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The City of Dreaming Books

By Walter Moers

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The Survivor

By Hans Herlin

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The battle of Wagram

By Gilles Lapouge

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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.