Paul Levitz Books

"Stranded on our earth over five years ago, these two heroes from Earth 2 are forced to fight evil in strange new surroundings, all while trying to find their way home. Power Girl and Huntress cont...

The Secret Society of Super Villains

By David Anthony Kraft, Terry Austin, Al Milgrom, Josef Rubinstein, Paul Levitz, Jack Abel, Vince Colletta, Bob Rozakis, Rich Buckler, Gerry Conway, Kick Giordano, Ernie Chan, Pablo Marcos

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Worlds finest

By Paul Levitz

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"DeSaad attacks Huntress and Power Girl! DeSaad and the Hellhounds of Apokolips are hunting Huntress and Power Girl and they may not be able to survive the encounter. They must go deep underground...

Worlds Finest

By Paul Levitz

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"Power Girl and Huntress come face to face with Superman and Batman for the first time! In this BATMAN/SUPERMAN crossover, desperate times call for desperate measure as the Worlds' Finest reveal th...

Legion of Super Heroes

By Paul Levitz

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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.