R. Andrew Sayer Books

Why we can t afford the rich

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"Exposes the unjust and dysfunctional mechanisms that allow the top 1% to siphon off wealth produced by others, through the control of property and money"--Back Cover.

The New Social Economy

By Richard Walker Undifferentiated, R. Andrew Sayer, Andrew Sayer

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The New Social Economy

By Richard Walker Undifferentiated, Andrew Sayer

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Postmodernist thought in geography

By Andrew Sayer

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Method in Social Science

By R. Andrew Sayer

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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.