Deborah Johnston Books

Mathew Michael's beastly day

By Deborah Johnston

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A young boy finds himself changing into different animals in the course of an otherwise typical day.

LAMBDA BLUE

By Deborah Johnston

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Lesotho

By Deborah Johnston

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This critical, selective, annotated bibliography, designed principally for the English-speaking reader, covers all aspects of Lesotho's history, politics, economy, social conditions and culture. Ch...

Economics and HIV

By Deborah Johnston

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The Sickness of Economics Routledge International Studies in Health Economics

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"This book explains how, and why, economics has been applied to a terrible pandemic, using a range of examples mostly drawn from the region most affected, sub-Saharan Africa."--P. [i].

Lesotho

By Deborah Johnston, Shelagh M. Willet

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Economics and HIV

By Deborah Johnston

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Economics and HIV

By Deborah Johnston

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Economics and HIV

By Deborah Johnston

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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.