Gary L. Blackwood Books

A delightful adveture full of humor and heart set in Elizabethan England!Widge is an orphan with a rare talent for shorthand. His fearsome master has just one demand: steal Shakespeare's play "Haml...

Wild Timothy

By Gary L. Blackwood

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Thirteen-year-old Timothy, more interested in reading than in physical activity, reluctantly accompanies his enthusiastic father on a camping trip and, when he accidently becomes lost in the woods,...

Year of the Hangman

By Gary L. Blackwood

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In 1776, the rebellion of the American colonies against British rule was crushed. Now, in 1777-the year of the hangman-George Washington is awaiting execution, Benjamin Franklin's banned rebel new...

Shakespeare's Spy

By Gary Blackwood

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Things are disappearing mysteriously from Will Shakespeare's acting company, and it looks like an inside job. Everyone's eyes are on Widge, the orphan boy turned actor, and former thief. Widge kn...

Second Sight

By Gary L. Blackwood

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Washington, D.C., 1864: In a city that’s weary of war and eager for entertainment, Joseph and his father’s mind-reading act has become the toast of the town. Even President Lincoln comes to see Jos...

Curiosity

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Intrigue, danger, chess, and a real-life hoax combine in this historical novel from the author of The Shakespeare StealerPhiladelphia, PA, 1835. Rufus, a twelve-year-old chess prodigy, is recruited...

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.