Don Graham Books

Lone Star Literature From the Red River to the Rio Grande

By Larry McMurtry

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Kings of Texas: The 150-Year Saga of an American Ranching Empire

By Don Graham

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King Ranch, carved from the scrub and mesquite of the South Texas coastal plains and comprising more acreage than the state of Rhode Island, is the largest and most famous cattle ranch in American...

Critical essays on Frank Norris

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The fiction of Frank Norris

By Don Graham, Donald Graham

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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.

Don Graham Books

No name on the bullet

South by Southwest

South by Southwest

Lone Star Literature From the Red River to the Rio Grande

Lone Star Literature

Kings of Texas: The 150-Year Saga of an American Ranching Empire

Kings of Texas

Critical essays on Frank Norris

Western movies

The fiction of Frank Norris

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How to Convert ISBN-10 to ISBN-13 (and Vice Versa): A Complete Guide

What is an EAN and How Does it Relate to an ISBN?