Giulio Leoni Books

La conjuration du TroisiA me Ciel French Edition

By Giulio Leoni

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La conjuration du troisieme ciel

By Giulio Leoni

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En l'an 1300, Dante, récemment élu au conseil de la ville de Florence, est confronté à une série de meurtres mystérieux : la première victime est retrouvée pétrifiée devant son oeuvre inachevée, la...

Tanri nin Gozu

By Giulio Leoni

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Los crimenes del mosaico

By Giulio Leoni

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El crimen de Medusa

By Giulio Leoni

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Florence, 1300. Dante Alighieri investigates a murder.

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.