Themes
What, How, Why. Peoples of the World
Cosa, come, perché. Popoli del mondo
What, How, Why. Flags
Cosa, come, perché. Bandiere
What, How, Why. Volcanoes
Cosa, come, perché. Vulcani
What, How, Why. Animals
Cosa, come, perché. Animali
Cosa, come, perché. Invenzioni
What, How, Why. Inventions
What, How, Why. Dinosaurs
Cosa, come, perché. I dinosauri
What, How, Why. The Earth
Cosa, come, perché. La Terra
What, How, Why. Space
Cosa, Come, Perché. Lo spazio