Robert M. Citino Books

"By 1943, the war was lost, and most German officers knew it. Three quarters of a century later, the question persists: what kept the German army going in an increasingly hopeless situation? Where...

The path to blitzkrieg

By Robert M. Citino

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De la Blitzkrieg a Tormenta del Desierto

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Cuando Alemania lanzó su «Blitzkrieg» en Francia en 1940, cambió para siempre la forma de hacer la guerra en el mundo. Aunque la Werhmacht sucumbió finalmente a la s uperior potencia de fuego aliad...

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.