Gary McClain Books

The Complete Idiot's Guide to Breaking Bad Habits

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"There are currently 130 million caffeine abusers in America today, not to mention the multi-millions of choking smokers, perpetual dieters, procrastinators, nailbiters, knuckle crackers, and tooth...

The Complete Idiot's Guide to Zen Living

By Gary R. McClain

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Rompa con los malos habitos

By Suzanne LeVert, Gary McClain

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Back to the User

By Tammy Sachs, Gary McClain

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After the diagnosis

By Gary R. McClain

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Power of Closure

By Gary McClain

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Complete Idiot s Guide to Breaking Bad Habits

By Suzanne LeVert, Gary McClain

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Complete Idiot s Guide to Breaking Bad Habits

By Suzanne LeVert, Gary McClain

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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.