From the heavy blades of bulldozers to the hauling bodies of dump trucks, heavy machinery and equipment have long been used in construction and demolition alike. Appealing to future builders, mechanics, and engineers, this new series explores the continued use of six Amazing Machines. Detailed photos and STEM-appropriate text examine the featured machine's parts, functions, variations, and worksites. Each book also includes a labeled pictorial diagram of variations of the machine. A basic exploration of the parts, variations, and worksites of concrete mixers, the cement-mixing machines. Also included is a pictorial diagram of variations of concrete mixers.