Hal Gregersen Books

Questions Are the Answer: A Breakthrough Approach to Your Most Vexing Problems at Work and in Life

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"What if you could unlock a better answer to your most vexing problem--in your workplace, community, or home life--just by changing the question? Talk to creative problem-solvers and they will ofte...

It Starts with One: Changing Individuals Changes Organizations

By Hal B. Gregersen, J. Stewart Black

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It Starts with One: Changing Individuals Changes Organizations

By J. Stewart Black

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It Starts with One: Changing Individuals Changes Organizations

By Hal Gregersen, J. Stewart Black

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Innovator s DNA Updated with a New Preface Mastering the Five Skills of Disruptive Innovators

By Hal Gregersen, Clayton M. Christensen, Jeff Dyer

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Questions Are the Answer

By Hal Gregersen

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Questions Are the Answer

By Hal Gregersen

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Questions Are the Answer

By Hal Gregersen, Ed Catmull

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Starts with One It

By Hal Gregersen, J. Black

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Leading Strategic Change

By Hal Gregersen, J. Black

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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.