Gaston LeRoux Books

The Phantom of the Opera

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Living secretly beneath the Paris Opera House, 'The Phantom of the Opera' Erik has haunted those who work there with his demands and shrouded the opera house in fear with the legend of his disfigur...

The Phantom of the Opera

By Gaston Leroux

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Bride of the Sun

By Gaston Leroux

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The Phantom of the Opera Dedalus European Classics

By Gaston Leroux

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Phantom of the Opera

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Les Etranges Noces de Rouletabille

By Gaston Leroux

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The Phantom of the Opera

By Gaston Leroux

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The Phantom of the Opera

By 1stworld Library, Gaston Leroux

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The Phantom of the Opera

By Gaston Leroux

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The Phantom of the Opera

By Gaston Leroux

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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.