Up and Down
All About Opposites series. Each leveled-reader volume consists of antonym pairs, with most books including only those two words (Day and Night includes "good day" and "good night"). Photographs show the examples, but it's not always clear what's being illustrated; comparison spreads (e.g., two boys, one "up," the other "down" on a seesaw, work best). Reading list, websites. Ind., The Horn Book Guide Spring 2012.