Tom McGowen Books

War gaming

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Introduces the hobby of war games, describing the different kinds and suggesting how to build, paint, and organize miniatures and battlefields and how to make rules for original games.

George Washington

By Tom McGowen

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Recounts the life of America's first president, including his youth in Virginia, military career, role in the formation of an independent nation, and leadership of that new country.

Radioactivity

By Tom McGowen

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Discusses discoveries, developments, and scientists in the field of radioactivity, which has revolutionized physics and medicine, with particular emphasis on the work done by the Curies.

The circulatory system

By Tom McGowen

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Describes early theories on how the circulatory system functions, Harvey's "discovery" of the circulatory system, and advances since his time in this area of medicine.

Chemistry, the birth of a science

By Tom McGowen

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Follows the early history of chemistry, from the time of the ancient world to the creation of modern chemistry in the late eighteenth century.

Epilepsy

By Tom McGowen

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Discusses the causes of epilepsy, how it is diagnosed and treated, and what to do if someone is having a seizure.

The great monkey trial

By Tom McGowen

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Examines the Scopes trial concerning the teaching of evolution in public schools, its outcome, and the implications for the continuing debate between evolutionists and creationists.

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.