Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
7.3
Points
1.0
Fiction/Nonfiction
Nonfiction
Word Count
5682
Points per Word
0.000176
Page Count
32
Points per Page
0.03125
Series
Yesterday and Today
Description
This book explores the history of communication from pictures on cave walls to laser printers that allow people to publish documents at their desks.