Steven Otfinoski Books

The Kid's Guide to Money: Earning It, Saving It, Spending It, Growing It, Sharing It

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Explains ways kids can earn money; how to save for a big purchase; how to get the most value for your money; how the stock market works; plus money moments such as did you know that a stamp that co...

Who stole Home Plate?

By Steven Otfinoski

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The Ancient Ones. The Anasazi of Mesa Verde (Book Treks, Genre: Nonfiction:expository)

By Steven Otfinoski

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Clay Magic, the Art of Animation (Book Treks, Genre: nonfiction:expository)

By Steven Otfinoski

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Behind the wheel

By Steven Otfinoski

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A brief overview of cars, liberally illustrated, from 1885 to the present.

The golden age of rock instrumentals

By Steven Otfinoski

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You Choose History

By Steven Otfinoski, Michael Burgan, Matt Doeden, Allison Lassieur

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Nelson Mandela

By Steven Otfinoski

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Describes the life and career of the South African civil rights worker and his impact on race relations in his country.

Joseph Stalin

By Steven Otfinoski

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A biography of the Soviet dictator, who, under the guise of communism and reform of a discontented society, was responsible for the murder of fifty million people and incalculable suffering by his...

Boris Yeltsin and the rebirth of Russia

By Steven Otfinoski

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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.