Extraterrestrial beings -- Juvenile fiction. Human-alien encounters -- Juvenile fiction. Friendship -- Juvenile fiction. Science fairs -- Juvenile fiction. Schools -- Juvenile fiction.

Extraterrestrial beings -- Juvenile fiction. Human-alien encounters -- Juvenile fiction.

Autism -- Fiction. Savants (Savant syndrome) -- Fiction. England -- Fiction.

Leonardo, da Vinci, 1452-1519 -- Themes, motives.

Apes -- Fiction. Human beings -- Fiction. Evolutionary genetics -- Fiction. Viruses -- Fiction. Science fiction.

Civilization -- History. Human beings -- History. World history. Chronology, Historical. Technology and civilization -- History.

Human beings. Change. Psychology -- Philosophy.

Folklore -- India, North -- Pictorial works -- Juvenile literature. Painting, Indic -- 21st century -- Pictorial works -- Juvenile literature. Bhil (Indic people) -- Pictorial works -- Juvenile literature. Bhil (Indic people) -- Social life and customs -- Pictorial works -- Juvenile literature. Nature -- Pictorial works -- Juvenile literature.

Extraterrestrial beings -- Fiction. Human-alien encounters -- Fiction. Alien abduction -- Fiction. Secret service -- Fiction. Science fiction.

Political science -- Philosophy -- History Political scientists -- History

Nature -- Effect of human beings on Overpopulation Population ecology

Environmental responsibility Environmentalism -- Philosophy Sustainability -- Philosophy Nature -- Effect of human beings on