John Franceschina Books

Homosexualities in the English theatre

By John Charles Franceschina

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Sisters of Gore

By John Franceschina

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David Braham

By Jo Franceschina, John Charles Franceschina

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"David Braham (1834-1905) was the musical director for the famous vaudeville team of Harrigan and Hart, writing music for their comic songs, including "The Mulligan Guards," "Paddy Duffy's Cart," a...

Harry B. Smith

By Jo Franceschina

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Dramatic Works of the Marquis De Sade

By Ben Franceschina, John Franceschina

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Dramatic Works of the Marquis De Sade

By Ben Franceschina, John Franceschina

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Dramatic Works of the Marquis De Sade

By Ben Franceschina, John Franceschina

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Gore On Stage

By Catherine Gore

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Plays of the Marquis de Sade

By Marquis De Sade

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Plays of the Marquis de Sade

By Marquis De Sade

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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.