"These titles not only offer big, high-energy color photos of various sorts of vehicles at work or play, but also informative glimpses of car and truck controls, engines, and interiors. Introducing distinctive vocabulary ('sheepsfoot roller' in Earthmovers, for instance, or 'wheelie' in Monster Trucks) and running to just two or three sentences per page, the texts provide lively commentary in a mix of declarative statements and non-rhetorical questions. The pictures show both men and women as operators, firefighters, or members of crews. Each volume closes with a labeled diagram, a page of 'fun facts,' and a short list of print and web resources. Aside from a debatable claim that big rigs 'travel slower than regular cars,' the series will make a worthwhile and popular addition." —School Library Journal, Series Made Simple