Alec Siegel Books

Hadrian s Wall

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"The Chicago Organized Workers League once stood as a beacon of hope against an epidemic of organized crime and an unbeatable "brotherhood" of Super-Villains. Now, in 1962, the union faces a disill...

C.O.W.L.

By Kyle Higgins

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With super villain threats a problem of the past, a strike on his hands, and scandal on the horizon, Geoffrey Warner has taken drastic steps to breathe life back into the Chicago Organized Workers...

Captain America America First

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Radiant Black Vol. 3

By Kyle Higgins, Joe Clark, Laurence Holmes, Alec Siegel, Marcelo Costa

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C. O. W. L. Vol. 1

By Rod Reis, Kyle Higgins, Alec Siegel

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C. O. W. L. Vol. 2

By Rod Reis, Kyle Higgins, Alec Siegel

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Wanda the Scarlet Witch and Vision

By Kyle Higgins, Alec Siegel

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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.