Reginald Butler Books

Connor and Clara build a concrete poem

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"On an autumn day, two friends play together and one teaches the other how to write concrete poems. Includes creative writing exercises to assist the reader in writing concrete poems"--Provided by...

Inclined planes

By Katie Marsico

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Presents a look at inclined planes, explaining how these simple machines work and describing some common examples, such as ramps, that have been used throughout history.--

Levers

By Katie Marsico

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Pulleys

By Katie Marsico

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Presents a look at pulleys, explaining how these simple machines work and describing some common examples that have been used throughout history.

Screws

By Lyn A. Sirota

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Presents a look at screws, explaining how these simple machines work and describing some common examples that have been used throughout history.--

Wheels

By Lisa Owings

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Presents a look at wheels, explaining how these simple machines work and how they have been used throughout history.

IsitJustus Vol. 1

By Reginald Butler

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Inclined Planes

By Katie Marsico, Reginald Butler

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Levers

By Katie Marsico, Reginald Butler

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Pulleys

By Katie Marsico, Reginald Butler

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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.