Describes the people, places, and events of Ancient Rome, from the early days of the Republic through the High Empire period and beyond. Includes four two-page spreads with acetate overlays.
Presents an extensive study of the tropical rainforests of the world and the plants, animals, and insects that inhabit them as well as ways to protect them from further damage.
Contains a survey of space, illustrated with photography of planets, astronomical discoveries, and both human and robotic space explorations. Transparent acetate spreads reveal details not normally visible to the naked eye.
Describes the physical characteristics and behavior of dinosaurs, and the environment in which they lived. Includes four two-page spreads with acetate overlays.
