Bobby Mercer Books

The Robot book

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"The 20 easy-to-build robots in this project book can be constructed for little or not cost using common household objects and repurposed materials."--

The Leaping Sliding Sprinting Riding Science Book

By Bobby Mercer

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Smash It Crash It Launch It

By Rain Newcomb, Bobby Mercer

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Quarterback Dad

By Alison D. M.D. Schonwald, Bobby Mercer

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Leaping Sliding Sprinting Riding Science Book

By Bobby Mercer

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Junk drawer engineering

By Bobby Mercer

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Outlines twenty-five projects to test the reader's engineering skills that use materials commonly found in a junk drawer, including a marble roller coaster, egg catch device, and pasta bridge.

A children's instructional book on how to use readily available materials to turn the house into a science lab Physics teacher Bobby Mercer provides readers with more than 50 great hands-on experim...

Junk Drawer Geometry

By Bobby Mercer

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Junk Drawer Geometry

By Bobby Mercer

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Racecar Book

By Bobby Mercer

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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.