John Willett Books

War Primer

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A terrifying series of short poems by one of the world’s leading playwrights, set to images of World War IIIn this singular book written during World War Two, Bertolt Brecht presents a devast...

Disasters of War

By John Willett, Antony Griffiths, Juliet Wilson Bareau

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War Primer

By Bertolt Brecht

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Heartfield contre Hitler

By John Willett

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Les collages et les photomontages par lesquels Heartfield a ridiculisé et combattu Hitler et sa bande tout au long des années 20 et 30.

L art africain

By Frank Willett

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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.