Alan J. Porter Books

Batman Unauthorized

By Alan J. Porter, Chris Roberson

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Les bagnoles

By Alan J. Porter

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"Ce titre s'insère dans une série de bandes dessinées faisant revivre les plus célèbres héros, classiques ou contemporains, de la filiale Disney. On y propose des intrigues plutôt étoffées, bien se...

Les Bagnoles N 11

By ALAN J. PORTER

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Les Bagnoles N 15

By ALAN J. PORTER

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Les bagnoles

By Alan J. Porter

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New Foundations

By Alan J. Porter

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My Journey with Joseph

By Alan J. Porter

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Joshua the Polar Bear. He Can Foresee the Future and the Right Answers

By Alan J. Porter

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Divine Intervention at 5 to Midnight

By Alan J. Porter

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My Journey with Joseph

By Alan J. Porter

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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.