What are some 'must-read' science fiction books?

Question: What are some 'must-read' science fiction books!?

I've been trying to get into the nerd attitude and basically have no idea where to start!. Looking in book stores there are so many seperate storylines and plots and even sub-genres! I don't know where to start !Www@QuestionHome@Com

Best Answer - Chosen by Asker:

Enders Game and Speaker For The Dead by Orson Scott Card

Lots of books by Authur C!. Clark including
2001, 2010, 2061, 3001 Space Odyssey series
Rendevous with Rama series

C!.S!. Lewis' Space trilogy:
Out of the Silent Planet
Perelandra
That Hideous Strenght (I really liked this one)

Michael Crichton
The Andromda Strain, Jurassic Park, Congo, lots more

Contact by Carl Sagan

Jules Verne is good too, (although kind of antiquated) 20,000 Leagues Under the Sea, Journey to the Center of the EarthWww@QuestionHome@Com

One must read is Ender's Game, or really the entire Ender's series (or anything by Card!.) It's a huge staple in science fiction, and you'll be hard pressed to find a science fiction lover who hasn't read it!.Www@QuestionHome@Com

Read the uglies trilogy by scott westerfeld!. He's my favorite author and the series was so good, they made a fourth book!Www@QuestionHome@Com

the uglies trilogy by scott westerfeld there to die forWww@QuestionHome@Com

Childhood's End by Arthur C!. Clarke !.
:0)Www@QuestionHome@Com