In Florian's ``How We Work'' series, a somewhat stronger entry than A Carpenter (p. 254). Though his style still doesn't really serve the subject, the impressionistic watercolors here are better disciplined to convey real information: it's easy to tell what the mechanic is working on, but not to know what he's actually doing—unless there's someone available to expand on the minimal, choppy text (almost every sentence begins, ``He...''). Fairly accurate, though replacing the oil filter is out of proper sequence; for what it's worth, this worker wears a yarmulke. Adequate but slight. (Nonfiction/Picture book. 3-7)