James J. Krupa Books

Oklahoma herpetology

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"Robinson Forest in eastern Kentucky is one of our most important natural landscapes--and one of the most threatened. Covering fourteen thousand acres of some of the most diverse forest region in t...

Oklahoma Herpetology

By Charles C. Carpenter, James J. Krupa

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Embattled Wilderness

By James J. Krupa, Wendell Berry, Erik Reece

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The Embattled Wilderness The Natural And Human History Of Robinson Forest And The Fight For Its Future

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Mammals of Robinson Forest

By James J Krupa

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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.