Jesper Juul Books

Relational competence

By Jesper Juul, Helle Jensen

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Half-Real: Video Games between Real Rules and Fictional Worlds

By Jesper Juul

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Half-Real

By Jesper Juul

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An in-depth analysis of game development and rules and fiction in video games—with concrete examples, including The Legend of Zelda, Grand Theft Auto, and moreA video game is half-real: we play by...

Your competent child

By Jesper Juul

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The author bases his advice on experience and theory of children's interactions with parents.

Your competent child

By Jesper Juul

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The author bases his advice on experience and theory of children's interactions with parents.

Aggression

By Marjories Latzke

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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.