ALAN J. PORTER Books

Batman: The Unauthorized Collector'S Guide

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with Over 6000 Items Listed, This Is The Most Comprehensive Guide To Batman*r Collectibles Ever Assembled Between Two Covers. Nearly 300 Color Photographs Accompany The Informative Articles And Det...

James Bond: Death Wing

By Yaroslav Horak, Ian Fleming, Jim Lawrence, ALAN J. PORTER, James Duncan Lawrence, Ian Fleming, Jim Lawrence, Yaroslav Horak

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Stand by for more adventures with the world’s greatest secret agent, as some of his most thrilling missions are collected for the first time ever!Death Wing sees 007 facing off against a unique gro...

James Bond: Shark Bait

By Yaroslav Horak, Ian Fleming, Jim Lawrence, ALAN J. PORTER, James Duncan Lawrence, Harry North, Ian Fleming, Jim Lawrence, Yaroslav Horak & Harry North

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The legend continues! Stand by for more adventures with the world’s greatest secret agent, as some of his most thrilling missions are collected for the first time ever!Shark Bait, a story never bef...

Rookie

By Various, ALAN J. PORTER

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Follows Lightning McQueen in his journey from a short-track racer to being the winner of the Piston Cup

Les Bagnoles - N° 11

By ALAN J. PORTER, ALAN J. PORTER

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Les Bagnoles - N° 15

By ALAN J. PORTER

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Divine Intervention at 5 to Midnight

By Alan J. Porter

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Cars: Radiator Springs

By Deron Bennett, Erika Terriquez, ALAN J. PORTER, Magic Eye Studios, Allan Sparrow

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While hanging out with his friends in Radiator Springs, Lightening McQueen realizes that everyone knows his story, but he doesnt know anyone elses! McQueen wants to know how his friends ended up in...

Cars Rally Race

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The Rookie

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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.