Young readers will learn colors and the names of a variety of construction vehicles in and around a building site! Readers will travel along with Yellow Digger and meet Orange Crane, who lifts heavy objects; Green Steamroller, who flattens new roads; Blue Dump Truck, who carries heavy loads of rocks and gravel; and Red Bulldozer, who pushes piles of dirt out of the way. Each spread features a light-activated sensor that produces a realistic construction vehicle sound when the oversized flap is lifted, as well as a simple physical activity for children to follow.