Armstrong Robert H. Books

"Bob has been photographing nature in Alaska for a really long time, 50 years to be exact. He has authored or coauthored 13 books dealing with Alaska's natural world. Most of these books are heavil...

Guide to the birds of Alaska

By Armstrong Robert H.

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Nature of Southeast Alaska

By Richard Carstensen, Armstrong Robert H., Rita M. O Clair

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Guide to the Birds of Alaska 6th Edition

By Armstrong Robert H., Nils Warnock

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Guide to the birds of Alaska

By Armstrong Robert H.

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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.