Paul Johnsgard Books

Dragons and Unicorns: A Natural History

By Paul A. Johnsgard

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Prairie children, mountain dreams

By Paul A. Johnsgard

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When a stegosaurus hatches from the "rock" that he brought back from Yellowstone Park, Jerry makes a bicycle trip back to the park to return the dinosaur to its volcanic home and meets a young Chey...

The Pheasants of the World

By Paul Johnsgard

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Among the most important of all bird groups, pheasants account for the most abundant domesticated species (the domestic fowl), the most extensively hunted upland game bird (the common pheasant), an...

North American owls

By Paul A. Johnsgard, Johnsgard Pa

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"Paul Johnsgard has completely updated his highly praised 1988 edition of North American Owls, and by adding twelve species of Mexican owls he now covers the entire continent of North America.". "...

Rocky Mountain Birds

By Paul Johnsgard

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The Birds of Nebraska

By Paul Johnsgard

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At Home and at Large in the Great Plains

By Paul Johnsgard

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Birding Nebraska s Central Platte Valley and Rainwater Basin

By Paul Johnsgard

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The North American Grouse

By Paul Johnsgard

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The North American Perching and Dabbling Ducks

By Paul Johnsgard

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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.