Jean F. Blashfield Books

Slavery in America

By Jean F. Blashfield

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Slavery in America

By Jean F. Blashfield

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England

By Jean F. Blashfield

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Missouri

By Jean F. Blashfield

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From the skyscrapers of St. Louis and Kansas City to the sprawling natural landscapes of the Ozarks and the Osage Prairie, Missouri is home to a breathtaking range of environments. Readers will lea...

Ireland

By Jean F. Blashfield

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This book describes Ireland's geography, wildlife, history, government, economy, people, religion, and culture.

Maryland

By Jean F. Blashfield

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Maryland

By Jean F. Blashfield

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Describes the geography, history, economy, culture, and people of the state of Maryland, and includes ideas for classroom assignments. This revised third edition takes an updated look at the geogr...

Oxygen Sparks of Life

By Jean F. Blashfield

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Sulfur Sparks of Life

By Jean F. Blashfield

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Magnesium Blashfield Jean F. Sparks of Life.

By Jean F. Blashfield

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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.