Mark Hertsgaard Books

The Eagle's Shadow

By Mark Hertsgaard

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A day in the life

By Mark Hertsgaard

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A Day in the Life: The Music and Artistry of the Beatles

By Mark Hertsgaard

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Earth Odyssey: Around the World in Search of our Environmental Future

By Mark Hertsgaard

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The eagle's shadow

By Mark Hertsgaard

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"Americans rarely used to think about the outside world. As the mightiest nation in history, the United States could do as it pleased. Now Americans have learned the hard way that what foreigners t...

On bended knee

By Mark Hertsgaard

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A Day in the Life: The Music and Artistry of the Beatles.

By Mark Hertsgaard

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They are the most popular and accomplished musical artists of this century. But for more than three decades, the secrets behind the Beatles' unparalleld artistic evolution were beyond reach - seale...

A Day in the Life

By Mark Hertsgaard

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Nuclear inc.

By Mark Hertsgaard

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On Bended Knee

By Mark Hertsgaard

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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.