Mary Frances Bowley Books

A League of Dangerous Women

By Mary Frances Bowley, James Lund

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The white umbrella

By Mary Frances Bowley

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Make it zero

By Mary Frances Bowley

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They are all around you–in your neighborhood, your church, even your own family. They are sisters and daughters and mothers. These young women may look like they have it together, but inside they’r...

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.