Michael Carroll is a fourth grade teacher in a suburb of Philadelphia. He enjoys his job very much and hopes that all of his students enjoy this book. (OK, It's actually me (Mike Carroll AKA Mr. Carroll), enough pronouns.) I wanted to write this book after seeing all of my students want iPhones & iPads for Christmas. When I was a kid, we would make our fun, not buy it (I know, I sound like Old Man Carroll). I'm hoping that my students are entertained by this book, make their own fun, and their curiosity continues to be piqued. I wrote it for you guys!