Gregory A. Freeman Books

A brand-new story about World War II’s daring African-American heroes from the author of The Forgotten 500.   The Tuskegee Airmen were the first African-American pilots in the US militar...

The Gathering Wind

By Gregory A. Freeman

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October 2012. A replica of the famous HMS Bounty, an eighteenth-century tall sailing ship, set a collision course with a storm that became the largest hurricane ever recorded in the Atlantic—...

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.