Roger Simpson Books

An Evening at the Garden of Allah: A Gay Cabaret in Seattle

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An Evening at the Garden of Allah tells the story of the community of gays and lesbians that blossomed around the cabaret during an age before the Stonewall rebellion in New York and other uprising...

Covering violence

By William E. Cote

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Covering violence

By William E. Cote

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Covering Violence: A Guide to Ethical Reporting About Victims & Trauma

By Roger Simpson

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The Church

By Richard Inwood, Andrew Cornes, Michael Baughen, Roger Simpson

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Hypnosis in Dentistry

By Roger Simpson

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Children of Fire Mountain

By Roger Simpson, Graeme Farmer

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Cautionary Tales: All Souls Ministry

By Etc., Richard Bewes

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Sir John Tenniel

By Simpson Roger

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This study deals with the early works of the influential illustrator, Sir John Tenniel, and with the ways in which the great debate of the 1840s in favor of the creation of an English school of his...

Camelot regained

By Simpson Roger

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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.