This polished spin-off of Rinker and Lichtenheld-s bestselling Goodnight, Goodnight, Construction Site features graduated pages shaped like five construction vehicles. Rinker-s sturdy rhymes touch on how the vehicles operate (-Bulldozer pushes on his thick, strong tread./ Mighty Dump Truck hauls dirt in his bed-), and small labels on each illustration point out their pertinent tools and gear (outrigger, scoop, canopy, etc.). Though the emphasis is on hard work, the static profile views of the vehicles and the dark blue backdrops against which they are set play right into the soothing bedtime theme of the book-s final pages. Up to age 3. Agent: Amy Rennert, Amy Rennert Agency. (Aug.)