Mario Cleri Books

Six Graves to Munich

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An explosive, non-stop thriller following one man’s trail of violence across post-war Europe from the bestselling author of The Godfather. Michael Rogan was an intelligence officer behind enemy l...

In the final days of the Second World War, Michael Rogan, a young American soldier, is brutally tortured by Nazi officers and left for dead. Vowing revenge, he begins a quest to track down and kill...

Six graves to Munich

By Mario Cleri

Average: 0.00, 0 Ratings

Narren sterben.

By Mario Puzo

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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.