Kids love this interactive book where they become part of the story! Theyll want to knock on each colorful door in turn. Knock! Knock! Turn the page and see five funny bunnies or seven sleepy bears. The interaction is ingeniously combined with short rhymes that are easy for young children follow, engaging them and making them want to turn the page and join in the refrain of Knock! Knock! A perfect first real book and not just an object to hold or chew. Kids will want to read this story over and over again. Knock! Knock! is an international bestseller.