John Sikela Books

Superman: The Man Of Tomorrow Archives, Vol. 1

By Bill Finger, Otto Binder, Michael Eury, Alvin Schwartz, Al Plastino, Curt Swan, Jerry Coleman, Wayne Boring, Robert Bernstein, Stan Kaye, Jerry Siegel, Kurt Schaffenberger, John Sikela

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V. 1. Action Comics 241-247 (june 1958-dec. 1958) And Superman 122-126 (july 1958-jan 1959). -- V. 2. Action Comics 248-254 (jan. 1959-july 1959) And Superman 127-131 (feb. 1959-aug. 1959). Superma...

Superman: The Man Of Tomorrow Archives, Vol. 2

By Bill Finger, Michael Eury, Alvin Schwartz, Jerry Siegel, Otto Binder, Al Plastino, Curt Swan, Jerry Coleman, Wayne Boring, Robert Bernstein, Stan Kaye, Kurt Schaffenberger, John Sikela

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Superman: The Man Of Tomorrow Archives Vol. 3

By Various, Bill Finger, Otto Binder, Michael Eury, Alvin Schwartz, Jerry Siegel, Al Plastino, Curt Swan, Jerry Coleman, Wayne Boring, Robert Bernstein, Stan Kaye, Kurt Schaffenberger, John Sikela

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Los Archivos De Superman Nº 03

By Paul Cassidy, Leo Nowak, John Sikela, Jerry Siegel

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DC Finest: Superboy: The Super-Dog from Krypton

By Various

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The adventures of Superboy continue, as readers meet Krypto the Superdog in this collection of classic superhero stories!DC Finest presents comprehensive collections of the most in-demand and celeb...

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.