Bjorn Poulsen Books

Nordic Elites in Transformation c. 1050 1250 Volume I

By Bjorn Poulsen, Jon Vidar Sigurdsson, Helle Vogt

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Settlement and lordship in Viking and early medieval Scandinavia

By Soren M. Sindbaek, Bjorn Poulsen

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This volume aims to define the changing nature of lordship in Viking and early medieval Scandinavia. Advances in settlement archaeology and cultural geography have revealed new aspects of social po...

Settlement and lordship in Viking and early medieval Scandinavia

By Soren M. Sindbaek, Bjorn Poulsen

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Litteraere bedommelser

By Bjorn Poulsen

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Bondens penge

By Bjorn Poulsen

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Feud In Medieval And Early Modern Europe

By Bjorn Poulsen

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Regional integration in early modern Scandinavia

By Name Missing

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Land - by - marked

By Bjorn Poulsen

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Urban Literacy in the Nordic Middle Ages

By Jeppe Buchert Netterstrom, Lisbeth Imer, Bjorn Poulsen, Rikke Steenholt Olesen, Kasper H. Andersen

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Danske Byer I Middelalderen

By Bjorn Poulsen, Hans Krongaard Kristensen

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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.