68 books • 5 series
Book #16: The Mathematician John Forbes Nash Jr. ? A Short Biography
Book #3: Galileo Galilei - A Short Biography
Book #4: Benjamin Franklin - A Short Biography
Book #5: The American Revolutionary War - A Short History
Book #6: The Astronomer Cecilia Payne-Gaposchkin - A Short Biography
Book #8: Coinage of the United States ? A Short History
Book #3: Birds are People Too - 3
Book #2: Haunted Places