4

Chip's Tips on South Africa

2

Country Flags of Africa

3

Canyons of the World

3

Coastal Plains of the World

4

Mount Kilimanjaro, Tanzania

3

Nelson Mandela

3

Meteorites, Meteoroids, and Meteors

3

Valleys of the World

3

Coral Reefs of the World

3

The Mount Kenya Trio

4

The White House

4

A Valentine for Cupid

4

Gorillas and Other Primates

3

Continents of the World

3

Trenches of the World

3

Mother Teresa

3

Gulfs of the World

3

Common Birds Book 2

4

Chip's Tips on Nigeria

3

Sinkholes of the World

3

All About History

4

Chip's Tips on Rwanda

4

The Pygmy People

4

Chip's Tips on Egypt

4

Carthage, Tunisia

4

Chip's Tips on Ghana

3

David Livingstone

4

Pyramids of Giza, Egypt

4

Chip's Tips on Botswana

4

Lake Malawi, Malawi