Brian M. Thomsen Books

The Awful Truths

By Brian M. Thomsen

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Man of Two Worlds:: My Life in Science Fiction and Comics

By Julius Schwartz, Schwartz Julius, Brian M Thomsen

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Beyond Shock And Awe: Warfare In The 21st Century

By Brian M. Thomsen, Eric L. Haney, Eric L. Haney, With Brian M. Thomsen

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Even if it's not quite true, for the sake of argument, let's pretend we know ourselves.

Beyond Shock And Awe: Warfare In The 21st Century

By Brian M. Thomsen, Eric L. Haney, Brian Thomsen, Eric L. Haney, With Brian M. Thomsen

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Even if it's not quite true, for the sake of argument, let's pretend we know ourselves.

Superheroes

By Brian M. Thomsen, Gerald Hausman, Paul Kupperberg, Dwight R. Decker, Josepha Sherman, Richard Lee Byers, Frieda A. Murray, Alan Dean Foster, Todd Cameron Hamilton, Dennis O¿Neil, P. J. Beese, John Varley, Mickey Zucker Reichert, Jerry Bingham, Mike Resnick, Michael A. Stackpole, William Marden, Brad Linaweaver, RICHARD A.KNAAK, Jody Lynn Nye, Laurell K. Hamilton, Roland J. Green, Roger Zelazny, John DeChancie, Brenda W. Clough, Stephen, L. Antczak, Lawrence Schimel, Lawrence Watt-Evans, Ricia Mainhardt

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Some come from distant planets. Others come from Mother Earth. Some gain their powers from radiation, cosmic rays, or toxic waste. Others are supreme athletes driven by superhuman dedication. They...

Halflings, hobbits, warrows & weefolk

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A Yuletide Universe

By Brian Thomsen, Brian M. Thomsen

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The Fantastic Adventures of Robin Hood

By Jean Little

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Oval Office occult

By Brian Thomsen

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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.