Interesting Times
Terry Pratchett
Discworld (17)
Spacecraft Systems Engineering
Peter Fortescue & Graham Swinerd & John Stark
The Smoke Ring
Larry Niven
The Smoke Ring (2)
Paper Princess
Erin Watt
The Royals (1)
The Folklore of Discworld
Terry Pratchett & Jacqueline Simpson
The Wit and Wisdom of Discworld
The Science of Discworld
Terry Pratchett & Ian Stewart & Jack Cohen