Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
9.3
Points
1.0
Fiction/Nonfiction
Nonfiction
Word Count
6056
Points per Word
0.000165
Page Count
93
Points per Page
0.010753
Series
Library of Congress
Description
Through vintage photographs, posters, paintings, quotes from letters, and speeches, this book introduces the great minds and ground-breaking inventions in our country's history.