Erik Jonsson Books

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"Why are we so often disoriented when we come up from the subway? Do we really walk in circles when we lose our bearings in the wilderness? How - and why - do we get lost at all?" "In this book, Er...

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By Erik Jonsson

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Oldnordisk Ordbog

By Erik Jonsson

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By Erik Jonsson, Donald A. Norman

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Oldnordisk Ordbog Ved Det Kongelige Nordiske Oldskrift Selskab...

By Erik Jonsson

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Oldnordisk Ordbog

By Erik Jonsson

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Oldnordisk Ordbog

By Erik Jonsson

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Socio Spatial Theory in Nordic Geography

By Peter Jakobsen, Erik Jonsson, Henrik Gutzon Larsen

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Socio Spatial Theory in Nordic Geography

By Peter Jakobsen, Erik Jonsson, Henrik Gutzon Larsen

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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.