Contact
Carl Sagan
The old man and the sea
Ernest Hemingway
The ultimate hitchhiker's guide to the galaxy
Douglas Adams
Shadow of the Giant
Orson Scott Card
Shadow puppets
Ender's Shadow
Shadow of the Hegemon
Ender's Game
Speaker for the Dead
Xenocide
Ender Sextet (3)
Children of the Mind
Ender Sextet (4)