Harley Hahn Books

Internet Golden Directory

By Harley

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Harley Hahn'S Emacs Field Guide

By Harley Hahn, Harley Hahn (Auth.)

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Harley Hahn, one of the most respected technical authors in the world, makes learning fun and stimulating. In this book, Hahn demystifies Emacs for programmers, students, and everyday users. The fi...

Power shortcuts-- Paradox for Windows

By Ron Dragushan

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Windows Internet Mem Kit 1st

By Ventanamedia

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Como Trabajar Con Internet Obra completa

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Power Shortcuts . . . Quattro Pro for Windows

By Harley Hahn

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Peter Norton's guide to Unix

By Peter Norton

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Harli Han obuchaet rabote v Internet

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Harley Hahn's Guide to Unix and Linux

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Harley Hahn'S Internet Advisor : How To Make Online Life Work For You

By Harley Hahn

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harley Hahn's Internet Advisor Is A Passionate And Insightful Book, Written By The Premier Author, Harley Hahn. This Book Personally Guides All Users In How To Do Things And Interact With The Inter...

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.