Tom McGowen Books

Adventures in archaeology

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Discusses some of the discoveries made by archeologists around the world, including mummies found in Denmark and the sophisticated ancient city of Mohenjo-daro in Pakistan.

The fearless fossil hunters.

By Tom McGowen

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When Jerry begins digging for dinosaur bones, he is startled to discover that a live dinosaur may be in the park.

Album of Whales

By Tom McGowen

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Introduces various types of whales, dolphins, and porpoises.

Album of Prehistoric Animals

By Tom McGowen

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A brief introduction to the history and characteristics of prehistoric mammals in general, and specific descriptions of twelve different kinds.

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.