Mark E. Hauber Books

Bird Day

By Mark E. Hauber, Tony Angell

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Book of Eggs

By John Bates, Mark E. Hauber, Barbara Becker

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Birds Gems of Nature

By Mark E. Hauber, Joanna Bentley

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Book of Eggs

By John Bates, Mark E. Hauber, Barbara Becker

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The Book of Eggs: A Life-Size Guide to the Eggs of Six Hundred of the World's Bird Species

By Mark E. Hauber

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The Book of Eggs introduces readers to eggs from six hundred species - some endangered or extinct - from around the world and housed mostly at Chicago's Field Museum of Natural History. Organized b...

Bird Day

By Mark E. Hauber, Tony Angell

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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.