8When tanks were first used, they changed how wars were fought. Today, tanks are getting more and more high-tech. But the main parts--turrets, caterpillar tracks, periscope--are as visible on today's tanks as on those of the past. Readers learn all about these parts as well as how one drives a tank in this book. A friendly character guides readers through the age-appropriate content, including STEM content like how caterpillar tracks work. A colorful design engages readers throughout.