Robin Michal Koontz Books

Old Mcdoggle Had a Zoo

By Robin Michal Koontz

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King s New Clothes

By Robin Michal Koontz

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Three Billy Goats and Gruff

By Robin Michal Koontz

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Run...it s a bee

By Robin Michal Koontz

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La patita Dorada y los tres castores

By Robin Michal Koontz

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The little duck, Dorada, explores the beaver dam without being invited. La patita Dorada descubre una pila de ramitas y se pregunta quién vivirá allí.

Light in the real world

By Robin Michal Koontz

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Where does light come from? What can it do?

Light in the real world

By Robin Michal Koontz

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Where does light come from? What can it do?

Tu arbol genealogico

By Robin Michal Koontz

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A family tree traces family history. As family members are added, a family tree grows. Simple text is used to explain what a family tree is and how you can trace your family history back hundreds o...

Tu arbol genealogico

By Robin Michal Koontz

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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.