Mayra Calvani Books

The Last Dinosaurs

By Mayra Calvani

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Dark Hunger

By Mayra Calvani

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Dark Lullaby

By Mayra Calvani

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The luthier s apprentice

By Mayra Calvani

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Niccolò Paganini (1782-1840), one of the greatest violinists who ever lived and rumored to have made a pact with the devil, has somehow transferred unique powers to another... When violinists aroun...

Frederico the Mouse Violinist

By Mayra Calvani

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Frederico the Mouse Violinist

By K.C. Snider, Mayra Calvani

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A Bad Mad Sad Day for Mama Bear

By Mayra Calvani

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A Bad Mad Sad Day for Mama Bear

By Mayra Calvani

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Crash

By Anna Pylypchuk Mayra Calvani

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The slippery art of book reviewing

By Mayra Calvani

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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.