Valerio Manfredi Books

The Last Legion

By Valerio Massimo Manfredi

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The Lost Army

By Christine Feddersen Manfredi, Valerio Manfredi

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The Lost Army

By Valerio Massimo Manfredi

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Tyrant

By Valerio Massimo Manfredi, Derek Jacobi

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The Ides of March

By Valerio Massimo Manfredi

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March, 44 BC. Rome, in all her glory, has expanded her territories beyond the wildest dreams of her citizens, led by Caius Julius Caesar — Pontifex Maximus, dictator perpetuo, invincible military l...

The Ancient Curse

By Valerio Manfredi

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In the middle of the night at the Museum of Volterra, young archeologist Fabrizio Castellani is immersed in his work - research into the famous Etruscan statue known as 'the shade of twilight'. Com...

The Ides of March

By Valerio Massimo Manfredi

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A tale of ancient Rome from the author of Alexander trilogy.

The Ancient Curse

By Valerio Massimo Manfredi

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In the middle of the night at the Museum of Volterra, young archeologist Fabrizio Castellani is immersed in his work - research into the famous Etruscan statue known as The Night Shadow. Completely...

Odysseus 1 The Oath Tpb

By Valerio Massimo Manfredi

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Odysseus The Return

By Valerio Massimo Manfredi

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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.