William Simpson Books

The Prince: The Secret Story of the World's Most Intriguing Royal, Prince Bandar bin Sultan

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"A portrait of one of the most enigmatic yet influential powerbrokers in America - Prince Bandar bin Sultan bin Abdul Aziz Al-Saud, the Saudi Arabian Ambassador to the United States from 1983 to 20...

Europe 1783-1914

By William Simpson, Martin Jones

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Hitler and Germany

By William Simpson, Simpson William

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The Second Reich: Germany, 1871-1918

By William Simpson, Simpson William

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Gypsy Storyteller

By William Simpson

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From the fleet in the fifties a history of the Crimean war

By Samuel Kelson Stothert, Tom Kelly, William Simpson

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Colonel's War

By William Simpson

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Sabre of Honour

By William Simpson

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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.