Josephine Harper Books

Prairie Dog Pioneers

By Jo Harper, Josephine Harper

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Prairie Dog Pioneers

By Harper Jo Harper Josephine

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Finding Daddy

By Jo Harper

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Worried he will become a burden to his family, Bonnie's out-of-work father leaves home, but Bonnie sets out with her dog to find him and bring him home and, in the process, learns that she and her...

Buscando a Papa

By Jo Harper

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Worried he will become a burden to his family, Bonnie's out-of-work father leaves home, but Bonnie sets out with her dog to find him and bring him home and, in the process, learns that she and her...

Whistling Willie from Amarillo Texas

By Jo Harper, David Harrington, Josephine Harper

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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.