Didier Lett Books

Children in the Middle Ages: Fifth-Fifteenth Centuries

By Daniele Alexandre Bidon, Didier Lett

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Famille et parente au Moyen Age

By Didier Lett

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Les enfants au Moyen Age

By Daniele Alexandre Bidon

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A partir de différentes sources (documents écrits, traces archéologiques, iconographie), les auteurs évoquent la vie des enfants en Europe du Ve au XVe siècle. Ils montrent quelle fut l'évolution d...

Un proces de canonisation au Moyen Age

By Didier Lett

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Freres et soeurs

By Didier Lett

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Histoire des freres et soeurs

By Didier Lett

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Une histoire de l'allaitement

By Didier Lett

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I registri della giustizia penale nell Italia dei secoli XII XV

By Didier Lett

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Statuts ecritures et pratiques sociales dans les societes de l Italie communale et du Midi de la France XIIe XVe siecle

By Valerie Theis, Pierre Chastang, Didier Lett, Etienne Anheim

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Ce volume est l'aboutissement d'un itinéraire de recherche collective de plusieurs années regroupant deschercheurs français et italiens. Issu d'un programme de l'EFR intitulé « Statuts, écritures e...

Haro! Noel! Oye!

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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.