National Geographic theme sets

A look at simple machines in the sports world.

A historical look at the Cheyenne. This book looks at the history and traditions of the Cheyenne.

Learn about the community of Honolulu, Hawaii and the history of Hawaii. This book is a social study of the community and people of this famous tourism city.

Boston is a city on the eastern coast of the United States. Learn about the history of Boston as well as how it continues to be an important seaport community.

The development of the railroad made travel much easier, changing the course of American history. The railroad opened up the West to settlers, resulting in social and demographic changes in the United States. The improvements in travel brought by the railroad led to other inventions such as diesel engines, cars and airplanes.

The invention of the reaper revolutionized the difficult and time-consuming work of harvesting wheat. Farmers could now harvest and sell more wheat, and fewer people were needed to work on farms, resulting in a migration to the cities. Improvements brought by the reaper led to other inventions such as threshers and combine harvesters.