John Wittry Books

Take Back Your Life!: Using Microsoft Office Outlook 2007 To Get Organized And Stay Organized

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The ideal guide for creating your own personal productivity system by using Office Outlook 2007 Take control of the unrelenting e-mail, conflicting commitments, and endless interruptions and take b...

The Time Management Toolkit: Microsoft Office Outlook 2007 Step By Step And Take Back Your Life

By Joyce Cox, Joan Preppernau, Joan Lambert, John Wittry, Sally McGhee

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Learn how to take control of your inbox—and your time. Now you can get two popular books on Office Outlook 2007—filled with essential, easy-to-follow guidance for improving your time-management ski...

Take Back Your Life

By Sally McGhee, John Wittry

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Take Back Your Life

By Sally McGhee, John Wittry

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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.