Experience the race of rails to link the country—and meet the men behind this incredible feat—in a riveting story about the building of the transcontinental

"A railroad across the United States was once thought to be nearly impossible. The vast expanse from the Pacific to the Atlantic Oceans had so many obstacles, i

In the 21st century, it’s easy to get from New York to California — take a road trip, board a plane, or hop on a train; you’ll be there in no time. The co

This is a biography of Earthopolis, the only Urban Planet we know of. It is a history of how cities gave humans immense power over Earth, for good and for ill.

Covering more than 500 titles, both classics and newer publications, this book describes what titles are about and why teens would want to read them. Nonfiction