Soothe little ones to sleep with this unique bedtime book Simply shine the beam of a light (not included) through the page ''windows'' to cast pictures on the wall as you read with your child. It's a fun and comforting way to end the day and experience a book together. PUBLISHER'S NOTE: For best results, use this shadow book with a small, single-bulb light source. A small pen light, other single-LED light, or the light on the back of a smartphone...