James Mullaney Books

Killer Watts

By Warren Murphy Richard Sapir

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Killer ratings

By Warren Murphy

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A buyer s and user s guide to astronomical telescopes and binoculars

By James Mullaney

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Amateur astronomers of all skill levels are always contemplating their next telescope, and this book points the way to the most suitable instruments. Similarly, those who are buying their first tel...

Ode aan het universum

By James Mullaney

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Ode aan het universum

By James Mullaney

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The Cambridge double star atlas

By James Mullaney

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The Cambridge Atlas Of Herschel Objects

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Culture Shock! Philippines: A Survival Guide To Customs And Etiquette

By James Mullaney, Grace Roces, Alfredo Roces

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Double & Multiple Stars, And How To Observe Them' Is Written Specially For Practical Amateur Astronomers Who Not Only Want To Observe, But Want To Know And Understand The Details Of Exactly What Th...

Iron Fist Volume 1: Breathless TPB

By James Mullaney

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The Herschel Objects and How to Observe Them

By James Mullaney

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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.