Gwen Diehn Books

Communication on the Job: A Practical Approach
Science Smart
Nature Smart
Kid style nature crafts
Kid style nature crafts

By Gwen Diehn

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Kid Style Nature Crafts
Science crafts for kids
Science crafts for kids

By Gwen Diehn

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Science Crafts for Kids
Nature Crafts for Kids
Geology crafts for kids
Geology crafts for kids

By Anderson Alan H.

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Includes activities designed to explore the broad spectrum of geologic phenomena such as plate tectonics, continental drift, mountain and valley formation, and erosion.

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Geology Crafts For Kids

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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.

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