Harvey Mackay Books

Swim with the Sharks

By Harvey Mackay

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Pushing the Envelope

By Harvey Mackay

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Pushing the Envelope All the Way to the Top

By Harvey Mackay

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Swim with the Sharks Without Being Eaten Alive

By Harvey Mackay

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Beware the Naked Man Who Offers You His Shirt

By Harvey Mackay

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FORTUNE magazine calls Harvey Mackay "Mr.-Make-Things-Happen." No matter where you are in your career, he can help you ride the expressway to success. This collection of on-target how-to's, insight...

The Harvey Mackay Network Builder

By Harvey Mackay

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How to Build a Network of Power Relationships

By Harvey Mackay

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Swim With The Sharks Without Being Eaten Alive

By Harvey Mackay

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Beware the Naked Man Who Offers You His Shirt

By Harvey Mackay, Harvey B. Mackay

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Swim with the sharks without being eaten alive

By Harvey Mackay

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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.