Betsy Ross Koller Books

Betsy and Dr. Ross discover a black beauty

By Betsy Ross Koller

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Betsy and Dr. Ross show Black Beauty at the county fair

By Betsy Ross Koller

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Betsy goes out with her father, Doc Ross, on his rounds of tending animals needing his help but is also busy getting her own pet, the blind horse Black Beauty, trained for the main event at the fai...

Betsy and Dr. Ross celebrate a birth with Black Beauty

By Betsy Ross Koller

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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.