Dorothy Brenner Francis Books

An illustrated history of drift bottles from ancient Greece to modern times, including unusual facts and anecdotes about their role in history, love, war, and scientific discovery.

Metal detecting for treasure

By Dorothy Brenner Francis

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Explains how to use metal detectors to locate and retrieve coins, jewelry, or gold. Includes anecdotes of people who "struck it rich."

Daiquiri dock murder

By Dorothy Brenner Francis

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Eden Palms murder

By Dorothy Brenner Francis

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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.