Dirk Gently's Holistic Detective Agency
Douglas Adams
Dune
Frank Herbert
Percy Jackson 4 - The Battle of the Labyrinth
Rick Riordan
The Grand Design
Stephen Hawking;Leonard Mlodinow
The ultimate hitchhiker's guide to the galaxy
The Hitchhiker's Guide to the Galaxy
Mostly Harmless
Hitchhiker's Guide to the Galaxy (5)
Life, the Universe and Everything
Hitchhiker's Guide to the Galaxy (3)