Paul Robert Walker Books

Every day's a miracle

By Paul Robert Walker

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The Feud That Sparked the Renaissance: How Brunelleschi and Ghiberti Changed the Art World

By Paul Robert Walker

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"The competition began with the creation of the doors for the church of St. John the Baptist. Lorenzo Ghiberti, a young, unknown, and inexperienced painter, produced an elegant panel cast almost en...

Head for the hills

By Paul Robert Walker

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Big Men Big Country

By Paul Robert Walker

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Big Men Big Country

By Paul Robert Walker

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My Camera Riser Sign

By Paul Robert Walker

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Head for the hills!

By Paul Robert Walker

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Head for the Hills Read it to Believe it

By Paul Robert Walker

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Head for the Hills

By Paul Robert Walker

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Head for the Hills

By Paul Robert Walker

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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.