Who Was Marco Polo?

Amundsen, the polar explorer

Who Was Thomas Alva Edison?

Who Is Bill Gates?

Barbie Developer: Ruth Handler: Ruth Handler

Knowledge Encyclopedia Dinosaur!: Over 60 Prehistoric Creatures as You've Never Seen Them Before

Who Was Alexander Graham Bell?

Who Were the Wright Brothers?

The discovery of America

Knowledge Encyclopedia Plants and Fungi!: Our Growing World as You've Never Seen It Before

The Young Investigator's Guide to Ancient Aliens

From Kingfishers to... Bullet Trains

Steve Jobs for Kids: A Biography of Steve Jobs Just for Kids!

What Was the Bombing of Hiroshima?

Ben & Jerry: Ice Cream Manufacturers: Ice Cream Manufacturers

Timelines of Everything: From woolly mammoths to world wars

Who Was Nikola Tesla?

The Moon

GPS

What Was the Lewis and Clark Expedition?