You are invited to a fantastic celebration in Katroo that will remind children "there is no one alive who is you-er than you." Join the Great Birthday Bird in this full-color activity book featuring puzzles, mazes, and posters based on the Dr. Seuss classic Happy Birthday to You! With more than 50 stickers that can be used to finish pictures and decorate cut-out cards, this activity book is perfect for children ages 3-7 on their special day!