Reading Metrics
Grade Level
Middle Grades Plus (MG+ 6 and up)
Book Level
9.2
Points
3.0
Fiction/Nonfiction
Nonfiction
Word Count
16601
Points per Word
0.000181
Page Count
80
Points per Page
0.0375
Description
This illustrated overview of the history of and beliefs about aliens discusses scientific evidence and depictions of aliens in popular culture and describes reported tales of abductions and encounters with these legendary creatures.