This new series by acclaimed artist, Kat Chadwick, allows small children to laugh out loud and play along with their grown-up readers.Poor Bird Brain meets so many pets, but which one says what? In Who Says Woof? Bird Brain can't remember who says woof. Is it the cat? No, silly!Children love to say no, especially to grown-ups, and can delight in saying no, over and over again until, finally, the lift the flap on the last spread reveals dog is the animal that says woof!