2

Tuck's Bad Luck

4

Maddy's Kentucky Diary

4

Maddy's Massachusetts Diary

4

Maddy's Virginia Diary

4

Maddy's Missouri Diary

4

Maddy's Tennessee Diary

4

The Mississippi River

3

Sinkholes of the World

4

Maddy's West Virginia Diary

3

Cuisines of the World

4

Maddy's Indiana Diary

4

Maddy's Illinois Diary

2

Trouble at the Fair

4

Famous Americans: Abraham Lincoln

2

This Lad Jack

3

Daniel Boone

3

Coastal Plains of the World

3

Christopher Columbus

4

Maddy's Rhode Island Diary

2

Map of the United States of America

4

Maddy's Ohio Diary

3

Caves of the World