John Ludden Books

Once upon a time. It began on 5th July 1984. A most beautiful day in the Italian South. With 70,000 screaming Neapolitans awaiting him and roaring out his name in the San Paolo stadium, Diego Arman...

Maradona E Il Napoli : Un Mito All'Ombra Del Vesuvio

By John Ludden

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Once Upon A Time In Naples

By John Ludden

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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.