Tammy Plotner Books

The Night Sky Companion Patrick Moore s Practical Astronomy Series

By Tammy Plotner

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Moonwalk with your eyes

By Tammy Plotner

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Of all the many things we can look at in the night sky, the Moon is one of the richest in its ever-changing detail, as changes in light and shadow daily transform what you can see of every feature....

Moonwalk with your eyes

By Tammy Plotner

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The Night Sky Companion

By Tammy Plotner

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The Night Sky Companion

By Tammy Plotner

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Night Sky Companion

By T. Mann, K. Vogt, Tammy Plotner

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Genetics and genomics of soybean

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What s up 2006 365 Days of Skywatching

By Barbour Tammy JeffPlotner, Jeff Barbour

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Night Sky Companion 2012

By Tammy Plotner

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The Night Sky Companion

By Tammy Plotner

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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.