Why buy this book if you already have, say, Undaunted Courage by Stephen Ambrose or Lewis and Clark Voyage of Discovery from National Geographic? Buy because Dayton has written from a different perspective which will enhance your appreciation of this Voyage of Discovery.
Useful essays include essays on Lewis ‘s dog Seaman, Sacagawea and the 178 plants and 122 animals seen by the Corps of Discovery that have not been seen before by Americans. The illustrations are also well chosen.