Roland H. Wauer Books

Birds of the Big Bend National Park and Vicinity

By Roland M. Waver, Roland H. Wauer

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For all seasons

By Roland H. Wauer

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The American Robin

By Roland H. Wauer

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In this book, Roland Wauer offers a complete natural history of the American Robin for a popular audience. Combining his own observations as a field naturalist with data gleaned from the scientific...

Birds of the northwestern national parks

By Roland H. Wauer

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Birds of the Northwestern National Parks

By Roland H. Wauer

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Naturally--- South Texas

By Roland H. Wauer

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Naturally--- South Texas

By Roland H. Wauer

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Birds of Zion National Park and vicinity

By Roland H. Wauer

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A completely revised edition of the basic birding book for the Zion National Park region, this is a guide to finding the hundreds of species that frequent the magnificent landscape in and around th...

A field guide to birds of the Big Bend

By Roland H. Wauer

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Butterflies of West Texas Parks and Preserves

By Roland H. Wauer

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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.