What sounds do farm animals make? Introduce babies and toddlers to different animal sounds with this gorgeous board book by bestselling author-illustrator Alison Lester. I see a curious cow, her calf is staring too. What do you say, curious cow? Moo Moo Moo! MOO is part of a wonderful series by author-illustrator Alison Lester, designed especially for 0-3 year olds and now in board book format. MOO focuses on farm animals, PURR on pet animals and ROAR on wild animals. Babies will respond to the rhythm of the text and the simple, colourful images, while toddlers will love joining in to make their own animal sounds. Age: 0-3.