Bright, graphic, cut-paper illustrations, cheerful rhymes, and fun-loving animals combine to build vocabulary and teach early readers colors, numbers, and animals. The four most commonly spoken languages in the United States-English, Spanish, Chinese, and French-are seamlessly introduced through numbers and clever design, as a paintbrush-wielding porcupine guides children and their accompanying adults on a colorful adventure of discovery. Guess Who is behind the Door has the capacity to grow along with your child for many years.