Harry Harrison books in order
23 books in the catalogue, about 129 hours of reading in all; the shortest takes 3 hours and the longest 12 hours.
2 series and 12 standalone books in the catalogue.
The Stainless Steel Rat
9 books
The Stainless Steel Rat 2.9 h 
The Stainless Steel Rat’s Revenge 3.6 h 
The Stainless Steel Rat Saves the World 2.9 h 
The Stainless Steel Rat Wants You! 3.5 h 5 
The Stainless Steel Rat for President 3.5 h 6 
A Stainless Steel Rat is Born 3.9 h 
The Stainless Steel Rat Gets Drafted 4.7 h The Golden Years of the Stainless Steel Rat length not known
The Stainless Steel Rat Sings the Blues 4.2 h Eden
3 books
Standalone books
Planet of the Damned 3.1 h 
Deathworld 1 2.9 h 
Make Room! Make Room! 4.2 h 
Deathworld Trilogy 8.1 h 
The Adventures of Stainless Steel Rat 7.5 h 
Microcosmic Tales 6.0 h 
Fantastic Creatures 2.9 h 
Science Fiction A to Z 11.9 h 
Machines That Think 11.5 h 
Foundation’s Friends 9.0 h 
Bill, the Galactic Hero 4.0 h 
The EC Archives 3.9 h