John Zenger Books

The Extraordinary Leader: Turning Good Managers into Great Leaders

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For too long, the subject of effective leadership has been shrouded in fog and ambiguity. This book removes the shroud to reveal leadership as a skill, one that can be consciously learned and devel...

The Handbook for Leaders: 24 Lessons for Extraordinary Leaders

By Joseph Folkman, John Zenger, John H. Zenger

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The Handbook for Leaders: 24 Lessons for Extraordinary Leadership

By Joseph Folkman, John H. Zenger

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The Inspiring Leader: Unlocking the Secrets of How Extraordinary Leaders Motivate

By John H. Zenger

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The Extraordinary Leader: Turning Good Managers into Great Leaders

By John H. Zenger

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Not Just for CEOs

By John Zenger, John H. Zenger

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Speed

By John H. Zenger

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In order to stay competitive and profitable, companies must improve the speed at which they operate and make crucial decisions. Speed reveals eight essential behaviors anyone can adopt to improve s...

The Extraordinary Leader

By John H. Zenger

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The Complete New Manager

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How to Be Exceptional: Drive Leadership Success By Magnifying Your Strengths

By John H. Zenger

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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.