Amy S. Hansen Books

Extreme Natural Disasters

By Christine Gibson

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Where does the sun go at night

By Amy Hansen

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"In graphic novel format, text and illustrations explain how Earth's movement causes day, night, and changes in the seasons"--

Where does the sun go at night?

By Amy Hansen

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"In graphic novel format, text and illustrations explain how Earth's movement causes day, night, and changes in the seasons"--

Every fall, insects disappear. And every spring, they return. Where do they go? The dragonfly dies, leaving its young safe in the muddy bottom of a stream. The monarch butterfly sails the air to dr...

Fossil Fuels

By Amy S. Hansen

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Solar Energy

By Amy S. Hansen

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Wind Energy

By Amy S. Hansen

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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.