Explores the magic of colors on spiral-bound transparent pages

Explains various types of airplanes and other flying machines, including gliders, passenger jets, helicopters, and hot-air balloons. Features transparent acetate overlays

Introduces the behavior and life cycle of cats. Features acetate overlays to hide and then reveal information

Follows a chestnut tree through the seasons as it sprouts from its seed, blossoms, grows, sheds leaves, and drops new chestnuts that will one day become trees too. Some of the illustrations are on clear overlay pages that can be turned to change the nature of the next double-page spread

Transparent overlays provide information on the inner framework of a ship, different kinds of ships, and their uses

Transparent overlays depict the plant and animal life found along a river and how rain and winter can change the river

Some of the illustrations are on clear overlay pages that can be turned to change the nature of the next double-page spread

Tells about the human body using color illustrations, cut-outs and overlapping transparencies