Roumanis, Alexis

Simple text and illustrations introduce young readers to the planet Mars.

Describes the ocean ecosystem covering more than half of Earth's surface and home to the blue whale, the largest animal on Earth.

Simple text and illustrations introduce young readers to the planet Jupiter.

Simple text and illustrations introduce young readers to the planet Earth.

Simple text and illustrations introduce young readers to the planet Jupiter.

Describes the features, location, and plant and animal life found in the mountains.

Describes the location, land, size, animals, plants, history, and people of South America.

Describes the location, land, size, animals, plants, history, and people of North America.

Describes the location, land, size, animals, plants, history, and people of Europe.

Describes the location, land, size, animals, plants, history, and people of Australia.