David Sherman books in order
9 books in the catalogue, about 58 hours of reading in all; the shortest takes 6 hours and the longest 7 hours.
1 series and 1 standalone book in the catalogue.
StarFist series
13 books
First to Fight 6.9 h 
School of Fire 6.5 h Blood Contact length not known
Steel Gauntlet length not known
6 
Hangfire 6.4 h TechnoKill length not known
Kingdom's Swords length not known
9 
Lazarus Rising 5.6 h 
Kingdom's Fury 6.5 h A World of Hurt length not known
Flashfire 5.9 h 
Firestorm 6.8 h 
Wings of Hell 6.3 h 