Keith Elliot Greenberg Books

Profiles the life and work of Roko Camaj, a professional window washer who cleans the windows on the observation tower of the World Trade Center, the second tallest building in the world.

Bomb squad officer

By Keith Elliot Greenberg

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Presents the life and career of Timothy Hajj, a bomb squad officer in Newark, New Jersey.

Risky Business - Marine Biologist (Risky Business)

By Keith Elliot Greenberg

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A profile of Dr. Sonny Gruber, a marine biologist who has been observing sharks for more than thirty years and who loves this risky occupation.

Photojournalist

By Keith Elliot Greenberg

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Describes the experiences of a United Nations photographer who has recorded the terrors of war in such places as Lebanon, Cambodia, and Bosnia.

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.