Philippe Guillaume Books

Land and calendar

By Philippe Guillaume

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Waiting for Josiah

By Philippe Guillaume

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A Diplomat s Life

By Philippe Guillaume

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Bonne Nuit French Edition

By Philippe Guillaume

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A history of biblical Israel

By Ernst Axel Knauf

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There was probably only one past, but there are many different histories. As mental representations of narrow segments of the past, "histories" reflect different cultural contexts and different his...

A history of biblical Israel

By Ernst Axel Knauf

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Music and Acoustics

By Philippe Guillaume

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La chute d un trader

By Pierre Boisserie

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A Paris, une soire e de gala re unit tout le gratin de la finance dont un certain Christopher Dante s, qui a fait fortune mais dont personne ne connai t vraiment le passe . De but d'une nouvelle s...

Le visage de la vengeance

By Pierre Boisserie

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De but du second cycle dans lequel Alexandre, un trader accuse de de tournements et de meurtre, se venge de la terrible machination dont il est victime.

La chute d'un trader

By Pierre Boisserie

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A Paris, une soire e de gala re unit tout le gratin de la finance dont un certain Christopher Dante s, qui a fait fortune mais dont personne ne connai t vraiment le passe . De but d'une nouvelle s...

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.