Science Fiction

Childhood's End by Arthur C. Clarke
Contact by Carl Sagan

Dark Visitor: The Coming Ice Age by Billy T
Do Androids Dream of Electric Sheep? by Philip Dick (includes Ubik and two others too)

Earth Abides by George Stewart

Foundation by Isaac Asimov

Ishmael by Nate & Daniel Quinn

The Man Who Grew Young by Daniel Quinn, Tim Eldred (Illustrator)
Mission to Abisko edited by John Casti

Five Novels of the 1960s & 70s by Philip Dick

Rendezvous with Rama by Arthur C. Clarke
Ringworld's Children by Larry Niven

Stranger in a Strange Land by Robert A. Heinlein

Turn Right at Orion: Travels Through the Cosmos by Mitchell Begelman
2061 by Arthur C. Clarke