Jean F. Blashfield Books

Apartment greenery

By Jean F. Blashfield

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Why They Killed

By Jean F. Blashfield

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Recycling

By Jean F. Blashfield

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Discusses the advantages of recycling and how we can help protect the environment from further damage.

Oil spills

By Jean F. Blashfield

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Describes how an oil spill occurs; the damaging effects of recent spills on the sea, land, and wildlife; and the difficult process of cleaning up after a spill.

Too many people?

By Jean F. Blashfield

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Presents opposing views on the effects of the earth's rising population.

Endangered species

By Jean F. Blashfield

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Identifies and tells the stories behind many plants and animals at risk from human action, and describes the political and other factors involved in decisions concerning the various species.

Rescuing endangered species

By Jean F. Blashfield

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England

By Jean F. Blashfield

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Describes the geography, history, economy, language, religions, culture, people, plants, and animals of England.

Wisconsin

By Jean F. Blashfield

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An introduction to the geography, history, natural resources, economy, culture, and people of Wisconsin.

Norway

By Jean F. Blashfield

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Describes the geography, plants and animals, history, economy, language, religions, culture, sports and arts, and people of Norway.

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.