From the Great Wall of China to the painted Lascaux caves in France, walls do much more than hold up ceilings. Walls define spaces, but they also keep things in and out, hold back nature, provide canvases for art and information, enclose safe havens, and more. From historic to modern, functional to beautiful, physical to emotional, simple text and striking photographs from acclaimed photographer Susan Kuklin make this a provocative book. It will challenge kids to see and think about walls in new ways. Text and photographs by Susan Kuklin.