Sometimes the best way to understand a concept is to consider a non-example, or opposite. This series of bilingual readers does just that.  Colorful pictures illustrate “Fast and Slow”, and the bold text sentences describe the pictures. Race cars are fast; bumper cars are slow. Speedboats are fast; canoes go slowly through the water. Jets go fast; seaplanes are slow, particularly when landing.  This series would be useful in Kindergarten, where the concept of opposites is taught. It would also be a great idea in first grade, supporting the acquisition of Spanish, while reinforcing the concept of “opposite”. Picture glossary and index included. No A.R. test located.