Margery Cuyler

When a second guinea pig is added to keep the first classroom pet company, the animals quickly add up — until they find other homes and are subtracted. The rhyming text is as fast and funny as the animated cartoon illustrations.

Hard hat Pete and his dump truck dutifully execute their work, from hauling rocks to traveling to another worksite. Other trucks they meet along the way have personalities as well, shown in crisply lined illustrations on sturdy pages and described in spritely, repetitive text.