Each book in this kit traces the growth process of a particular plant or animal, using simple, clear texts and detailed, full-color artwork. Life cycles books included: Caterpillar to Butterfly (4 copies), Egg to Chicken (3 copies), Tadpole to Frog (4 copies), and Seed to Sunflower (4 copies). In addition to the glossary and index, each book includes a fact section and a handy, illustrated timeline.