Patricia K. Kummer Books

Washington, D.C.

By Patricia K. Kummer

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Provides an overview of Washington, D.C., covering its history, geography, economy, people, and points of interest.

West Virginia

By Patricia K. Kummer

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Provides an overview of the state of West Virginia, covering its history, geography, economy, people, and points of interest.

Wyoming

By Patricia K. Kummer

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Provides an overview of the state of Wyoming, covering its history, geography, economy, people, and points of interest.

Nature's power

By Patricia K. Kummer

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The mighty Mississippi

By Patricia K. Kummer

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Learn all about the mighty Mississippi River and the bustle of activity that surrounds it.

The Great Barrier Reef

By Patricia K. Kummer

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The mighty Mississippi

By Patricia K. Kummer

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Learn all about the mighty Mississippi River and the bustle of activity that surrounds it.

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.