Animals from around the world lull their babies to sleep in this charming and unique bedtime book. Simply shine a beam of a light (not included) through the ''windows'' on each page to cast its pictures on the wall as you read the rhymes. It's a fun way to end the day and experience a book together. Please note: For best results, use this shadow book with a small, single-bulb light source. A pen light, single-LED light, or the light on the back of a smartphone is recommended. Multi-LED flashlights are not recommended. Ages 3 to 9.