Paul Sammon Books

The Christmas Carol trivia book

By Paul Sammon

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The making of Starship troopers

By Paul Sammon

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Conan the Phenomenon

By Frank Frazetta, Paul Sammon

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Future Noir Revised and Updated Edition

By Paul M. Sammon

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Conan the Phenomenon

By Frank Frazetta, Michael Moorcock, Philip Simon, Others, Paul M. Sammon

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The Man in the High Castle: Creating the Alt World

By Paul Sammon

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Discover the alt worlds of The Man in the High Castle in this exclusive collection of art. Packed with concept art, final designs, and artist commentary plus previously unseen storyboards.The Man i...

Sinbad and the Winds of Destiny

By Gary McCluskey, Kevin Candela, Paul Sammon, Mark Woods

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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.