Penny Atcheson Books

Collecting and Examining Life Science Companion Level One Teacher Lesson Manual

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This inquiry-based, modular science curriculum covers three strands: life science, physical science, and earth science. The pre-kindergarten/kindergarten level contains five modules, and levels 1-5...

Daily Science Grade 1

By Evan Moor Educational Publishers

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Sound All Around

By Craig Frederick, Penny Atcheson

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Three R Plan

By Penny Atcheson, Hugh Armstrong

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How Sound Works

By Craig Frederick, Penny Atcheson

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Amazing Undersea Food Web

By Cende Hill, Elizabeth Fox, Penny Atcheson

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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.