James Penner Books

Philosophical Foundations of the Law of Unjust Enrichment

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This volume takes stock of the rapid changes to the law of unjust enrichment over the last decade. It offers original contributions from leading private law theorists examining the philosophical fo...

Pinks Pansies and Punks

By James Penner

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Consuming youth

By John Berard

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Consuming Youth

By James Penner, John Berard, Rick Bartlett

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Property Theory

By James Penner, Michael Otsuka

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Pinks Pansies and Punks

By James Penner

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McCoubrey and White s Textbook on Jurisprudence

By James Penner, Emmanuel Melissaris

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Law of Trusts

By James Penner

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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.