Janet L. Nelson Books

England in Europe, 1066-1453

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Europe is in crisis. The events of the past few years have had a major effect on our perception of the European past and now we have to come to terms with it. Familiar themes from history have emer...

The Medieval World

By Janet L. Nelson, Peter Linehan

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Lay Intellectuals in the Carolingian World

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Charles The Bald

By Janet L. Nelson

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Charles The Bald

By Janet L. Nelson, J. Nelson

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Discusses the historical and political aspects of the reign of this ninth-century French king.

Sir Frank Stenton and the Vikings

By Janet L. Nelson

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Charlemagne Allen Lane History

By Janet L. Nelson

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The annals of St-Bertin

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The Annals of St Bertin

By Pas De Calais France Saint Bertin Monastery Saint Omer

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Law, laity, and solidarities

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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.