Martin Powell Books

The Swiss Family Robinson

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Graphic novel adaptation of Johann David Wyss' story relating the fortunes of a shipwrecked family as they imaginatively adapt to life on an island abundantly inhabited by animal and plant life.

L. Frank Baum s The Wizard of Oz

By Martin Powell

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Dorothy and her dog, Toto, are carried away by a cyclone and crash down in a strange land called Oz, where they learn that to return home, Dorothy must travel to the Emerald City and meet the all-p...

Alice in Wonderland

By Martin Powell

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A graphic novel adaptation of the tale in which a little girl falls down a rabbit hole and discovers a world of nonsensical and amusing characters.

The Wizard of Oz

By L. Frank Baum, Benny Fuentes

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The Ugly Duckling

By Hans Christian Andersen

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DC Super Heroes Complete Set

By Blake A. Hoena, Robert Greenberger, Martin Pasko, Scott Sonneborn, Martin Powell

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Tall

By Donald Lemke

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Four American folktales come alive in this collection of comics.

Batman The Fog of Fear Superman Meteor of Doom DC Super Heroes

By Doescher DeCarlo Loughidge Kuppersbert McManus Powel

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The Stolen Superpowers

By Martin Powell

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Understanding the Mixed Economy of Welfare

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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.