Robert Grayson Books

John Cena
John Cena

By Robert Grayson

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SWAT teams
SWAT teams

By Robert Grayson

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"Describes SWAT teams operating in the United States, including their history, gear, weapons, training, and missions"--

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Exploring space
Exploring space

By Robert Grayson

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Ed Begley Jr.
Ed Begley Jr.

By Robert Grayson

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Ed Begley, Jr.
Ed Begley, Jr.

By Robert Grayson

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Plaxico Burress
Plaxico Burress

By Robert Grayson

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The FBI and cyber crimes
The FBI and cyber crimes

By Robert Grayson

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The FBI and national security
The FBI and public corruption
John Cena
John Cena

By Robert Grayson

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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.

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