Steve Light

A long, white cat and a short, black cat play with a toy mouse until one cat is awake and the other is asleep, in a book introducing the concepts of opposites.

"From a lowly mixture of stone, sand, water, and cement have sprung sidewalks, streets, and skyscrapers, . . . lighthouses and . . . palaces, long bridges and massive dams. In ancient building practices, in modern engineering, and in the architecture of the future, humble concrete plays a mighty role in the creation of the human-made world. With facts and . . . running narrative in the form of repartee-filled speech bubbles, [this book] is . . . informative...