What is it like to operate and drive a huge concrete mixer truck? In this book, readers will meet the men and women who drive concrete mixers and deliver this essential substance to construction sites. They will learn about the machinery that perfectly mixes rocky material, sand, cement, water and other substances in the truck’s giant drum. They will also see how the concrete mixture is pumped from the truck to where it is needed during the building of roads and other structures. Filled with photos, this book is a fascinating read for all truck and young non-fiction fans.