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
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