Robert Westbrook Books

Vistas in Astronomy No 3 and No 4 Pts 3 4 of 4 Pts

By Arthur Beer

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Hungry Ghost

By Robert Westbrook

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On a cold November night, Howard Moon Deer is walking home through the woods when he is accosted by a ghost from his past: Nick Stanton, his long-ago roommate at college, who makes a seemingly simp...

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Warrior Circle

By Robert Westbrook

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"Fans of Hillerman will love this unique and quirky detective duo." -Leslie Glass, bestselling author of Judging Time A Howard Moon Deer Mystery In the deserts of New Mexico, someone has just disco...

Magic Garden of Stanley Sweetheart

By Robert Westbrook

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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.