The Tripods
| Author | John Christopher | 
|---|---|
| Country | United Kingdom | 
| Language | English | 
| Genre | Young adult, science fiction | 
| Publisher | 
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| Published | 1967 | 
| No. of books | 4 | 
The Tripods is a series of young adult science fiction novels by John Christopher. The series takes place in a post-apocalyptic world where humanity is enslaved by "Tripods"—gigantic three-legged walking machines piloted by an alien race later identified as the "Masters". The first two books were the basis of a science fiction TV series, produced in the United Kingdom in the 1980s.