Barry R. PARKER Books

On the desolate, snow-topped peak of the highest mountain in Hawaii the view of the heavens is truly breathtaking. Since the "discovery" of Mauna Kea in 1963, astronomers worldwide have been vying...

Chaos in the cosmos

By Barry R. Parker, Parker Barry.

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As this remarkable book shows, we live in a universe beset with chaos. Highly acclaimed popular science writer Barry Parker shows - for the first time in a popular work - the amazing impact chaos t...

Stairway to the Stars

By Barry Parker

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Chaos In The Cosmos

By Barry Parker

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Cosmic Time Travel

By Barry Parker

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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.