Robin Michal Koontz Books

Basic Math
Basic Math

By Barbara Gregorich

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Pussycat ate the dumplings
Pussycat ate the dumplings

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Pussycat Ate the Dumplings
Composting
Composting

By Robin Michal Koontz

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Describes what composting is, what goes into compost, and why composting is beneficial.

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Erosion
Erosion

By Robin Michal Koontz

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Composting
Composting

By Robin Michal Koontz

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Erosion
Erosion

By Robin Michal Koontz

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Amazing Science
Up All Night Counting
Up All Night Counting

By Bruce Foster, Robin Michal Koontz

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Rhyming text tells the story of ten kinds of animals starting with one flying squirrel and ending with ten bats.

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Creepy Crawly Colors
Creepy Crawly Colors

By Bruce Foster, Robin Michal Koontz

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Rhyming text tells the story of creepy animals with unlikely colors such as an orange gecko, a purple beetle, and a blue eel.

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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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