Todd Kelsey Books

Introduction to Google Analytics

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"Web analytics is critical to online marketers as they seek to track return on investment and optimize their websites. Introduction to Google Analytics covers the basics of Google Analytics, starti...

Introduction to search engine marketing and AdWords

By Todd Kelsey

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Use Google's AdWords to create your ads. Each chapter goes beyond the tool itself, discussing helpful resources and important issues to keep in mind. If you are completely new to search engine mar...

Introduction to Social Media Marketing

By Todd Kelsey

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Surfing the Tsunami

By Todd Kelsey

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Flash MX Design for TV and Video

By Janet Galore, Todd Kelsey

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Macworld DVD Studio Pro Bible

By Chad Fahs, Todd Kelsey

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Project Management With Basecamp

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Social Networking Spaces Beginning

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Introduction to Search Engine Optimization

By Todd Kelsey

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Breast MRI Teaching Atlas

By Christopher E. Comstock, Richard Ha, Elizabeth A. Morris

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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.