Jonathan Friedman Books

"The first edition of System, Structure, and Contradiction was an important step in combining materialist and cultural approaches in a larger framework of social reproduction. This new edition of F...

System, structure, and contradiction

By Jonathan Friedman

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Creation in Space

By Jonathan Friedman

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Cultural identity and global process

By Jonathan Friedman

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Examining ideas ranging from world systems theory to postmodernism, Jonathan Friedman investigates the relations between the global and the local, to show how cultural fragmentation and modernist h...

Cultural identity and global process

By Jonathan Friedman

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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.