Henry Ehrlich Books

Sleep To Save Your Life: The Complete Guide To Living Longer And Healthier Through Restorative Sleep

By Henry Ehrlich, Gerard T. Lombardo, Gerard T. Lombardo M.D.

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Sleep To Save Your Life: The Complete Guide To Living Longer And Healthier Through Restorative Sleep

By Henry Ehrlich, Gerard T. Lombardo, Gerard T. Lombardo M.D.

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We're supposed to spend one-third of our lives sleeping. But today a shortage of sleep—and of the right kind of sleep—is undermining our productivity, relationships, and health. Sleep problems can...

A Time To Search

By Henry Ehrlich

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Quick Vocabulary Power: A Self-Teaching Guide

By Jack S. Romine, Henry Ehrlich, Jack S. Romine And Henry Ehrlich

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If you're ready to expand your word power, this book is for you. You'll learn practical shortcuts and techniques for understanding and using more words. You'll discover how combining Greek and Lati...

The Wiley Book Of Business Quotations

By Henry Ehrlich

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Instructive, well-organized . . . . The Wiley Book of Business Quotations is a worthy addition to your business bookshelf-USA Today This [is] a great book for speechwriters as well as writers . . ....

The Wiley Book Of Business Quotations

By Henry Ehrlich

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Wiley Book Of Business Quotations

By Henry Ehrlich

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Asthma Allergies Children: A Parent'S Guide

By Henry Ehrlich, Paul Ehrlich, Dr Paul Ehrlich, Dr Larry Chiaramonte, Henry Ehrlich, Dr Paul Ehrlich, Dr Larry Chiaramonte

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Writing Effective Speeches

By Henry Ehrlich

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Writing Effective Speeches

By Anne Ehrlich, Henry Ehrlich, Paul Ehrlich, Henry Ehrlech

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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.