David Gilleece Books

Bachelor girl

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Having left her parents' Missouri farm for good and trained to become a telegraph operator in Kansas City, teenage Rose moves out to San Francisco and joins the thousands of "bachelor girls" suppor...

The Rocky Ridge Collection

By Roger Lea MacBride, David Gilleece

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Little House On Rocky Ridge

By David Gilleece, Roger L. MacBride

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Little Town in the Ozarks by Roger Lea MacBride 2009 Paperback Reprint

By Roger Lea MacBride

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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.