Fred Reichheld Books

The ultimate question 2.0

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"In the first edition of this landmark book, business loyalty guru Fred Reichheld revealed the question most critical to your company's future: "Would you recommend us to a friend?" By asking custo...

The ultimate question

By Frederick F. Reichheld

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Based on extensive research, 'The Ultimate Question' shows how companies can rigorously measure Net Promoter statistics, help managers improve them, and create communities of passionate advocates t...

HBR s 10 Must Reads on Strategic Marketing

By Fred Reichheld, Clayton M. Christensen, Harvard Business Review, Philip Kotler, Theordore Levitt

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HBR s 10 Must Reads 2023

By Fred Reichheld, Francesca Gino, Harvard Business Review, Linda A. Hill, Adam M. Grant

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The Ultimate Question

By Fred Reichheld

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La pregunta decisiva 2.0

By Fred Reichheld, Rob Markey

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HBRs 10 Must Reads on Strategic Marketing HBRs 10 Must Reads

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Winning on Purpose

By Fred Reichheld

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The Ultimate Question: Driving Good Profits and True Growth

By Fred Reichheld

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The Ultimate Question: Driving Good Profits and True Growth

By Fred Reichheld

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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.