Betsy Maestro Books

Struggle for a continent

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Discusses the relations between the European colonists and the Native Americans, the disputes between settlers from France, England, and Spain, and the role these conflicts played in the history of...

The Story of Clocks and Calendars: Marking a Millennium

By Betsy Maestro

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Discusses the year 2000 as a milestone marking two thousand years of human achievement, as a threshold leading into a new millennium, and as an important anniversary of the birth of Jesus Christ.

The story of clocks and calendars

By Betsy Maestro

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Discusses the year 2000 as a milestone marking two thousand years of human achievement, as a threshold leading into a new millennium, and as an important anniversary of the birth of Jesus Christ.

Exploration and Conquest

By Betsy Maestro

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The Voice of the People

By Betsy Maestro

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The Story of Religion

By Betsy Maestro

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In my boat

By Betsy Maestro

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Clowns, whales, monkeys, elephants, and other animals went by me in my boat, but only my daddy had time to stop.

Ferryboat

By Betsy Maestro

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A family crosses a river on a ferryboat and observes how the ferry operates.

Ferryboat

By Betsy Maestro

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A family crosses a river on a ferryboat and observes how the ferry operates.

Why Do Leaves Change Color

By Loretta Krupinski, Betsy Maestro

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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.