Lucien Gubbay Books

Ages of man

By Lucien Gubbay

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Our glorious tradition

By Lucien Gubbay

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The Sephardim

By Abraham Levy, Lucien Gubbay

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Sunlight and Shadow

By Lucien Gubbay

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Jews participated in the flowering of international civilization made possible by the worldwide conquests by the Arabs. It was under Muslim rule that Judaism developed as the religion we know today...

Sunlight and Shadow

By Lucien Gubbay

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The Sephardim

By Abraham Levy, Lucien Gubbay

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The Jewish book of why and what

By Lucien Gubbay

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Sunlight and Shadow: The Jewish Experience of Islam

By Lucien Gubbay

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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.