This is a clever, very colorful picture book with a simple purpose. It illustrates, with funny little cartoon illustrations, hundreds (440 to be exact) of common expressions in the English language that involve animals, such as: "A bird in the hand is worth two in the bush." "Mad as a hornet." "I have butterflies in my stomach." "You're putting the cart before the horse." A short definition of the phrase's meaning is also included. This is a fun idea for exploring our language and it's amazing just how many expressions fit into this category? I like how there's a certain connectivity between different themes and they modernized some old-fashioned clip-art for some of the illustrations. This will be enjoyed by preschoolers all the way through the elementary school years.