Ian Lumsden Books

20Th Century British Drawings in the Beaverbrook Art Gallery

By Ian Lumsden

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Paysages De L Amerique Du Nord Brittanique

By Ian Lumsden

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The Beaverbrook Art Gallery Collection

By Curtis Joseph Collins, Laurie Glenn, Ian Lumsden

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Homosexuality, society and the state in Mexico

By Ian G. Lumsden, Ian Lumsden

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Since the Cuban revolution in 1959, male homosexuality has been a controversial aspect of Cuban society. In this strikingly honest and accurate portrayal of homosexual life, Ian Lumsden explores th...

Machos Maricones and Gays

By Ian Lumsden

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Machos Maricones And Gays

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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.