Who Was Jim Henson?

Who Was Dr. Seuss?

Who Was Marco Polo?

Bomb: The Race to Build--and Steal--the World's Most Dangerous Weapon

Who Was Johnny Appleseed?

What Was Pearl Harbor?

The Day the World Went Nuclear: Dropping the Atom Bomb and the End of World War II in the Pacific

Who Was Neil Armstrong?

Who Was Amelia Earhart?

What Was the Titanic?

The Boys in the Boat (Young Readers Adaptation): The True Story of an American Team's Epic Journey to Win Gold at the 1936 Olympics

The Main Event: The Moves and Muscle of Pro Wrestling

What Was the Hindenburg?

Statue of Liberty

Flesh and Blood So Cheap: The Triangle Fire and Its Legacy

What Was the March on Washington?

What Was the Great Depression?

Children of the Dust Bowl: The True Story of the School at Weedpatch Camp

Kennedy's Last Days: The Assassination That Defined a Generation

The Finest Hours (Young Readers Edition): The True Story of a Heroic Sea Rescue