My youngest son (now 3) has loved this book since he was 18 months. And even his older brothers will come to listen when we read this book to add their own silly stories. The riddles are silly and invite discussion and retelling of classic children's stories. The activity inside the houses is simple enough to engage very young children and detailed enough that children continue to find them interesting as they grow older and more observant. I am buying this as a present for other toddlers I know and love.