Jean Pierre Houdin Books

The Secrets of Ancient Egypt

By Albert Canagueral, Federico Puigdevall, Jean Pierre Houdin

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Le mystere de la pyramide de Kheops

By Jean Pierre Houdin

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Documentaire présentant la théorie de l'architecte Jean-Pierre Houdin entourant la construction de la pyramide de Kheops, monument construit au nord de l'Égypte il y a plus de 4500 ans et encore de...

Secret of the Great Pyramid

By Bob Brier, Jean Pierre Houdin

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Secret of the Great Pyramid

By Bob Brier, Jean Pierre Houdin

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Secret of the Great Pyramid

By Bob Brier, Jean Pierre Houdin

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Secret of the Great Pyramid

By Bob Brier, Jean Pierre Houdin

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Secret of the Great Pyramid

By Bob Brier, Jean Pierre Houdin

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Khufu

By Jean Pierre Houdin

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La pyramide de Kheops

By Jean Pierre Houdin

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Kheops

By Jean Pierre Houdin

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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.