Great list... are you not an Amazon Affiliate? If I pick any of these up I'd want you to get a commission for recommending them! - David Knight

I am but I figure I'd leave the link off. I'd be really happy just to get your suggestions on all of these. - Steve Spalding

Awesome. I would suggest more books by Frank Herbert, he was an absolute genious. Especially – since it is almost no longer sci-fi – I would suggest "The white plague". And also the last books in the Dune saga (by Brain Herbert and Kevin J Anderson) are nice, but not necessary. - dK

I'd recommend Samuel R. Delany - "Dhalgren", "Babel 17", or "Stars In My Pocket Like Grains Of Sand" are three of my favourites. - Bob Kingsley

One I'd recommend is "The Mote in Gods Eye" by Niven and Pournelle - about the best book on first contact I've ever read. - Colin Walker

Colin - but stay away from "Footfall" that book stank. - Phil Glockner

I would recommend "Blood Music" by Greg Bear, and "The 5th Column" by Robert Heinlein. And how about some Larry Niven love.. ah you have ringworld. Yes, good choice. - Phil Glockner

Agree with Colin on "The Mote In God's Eye" - I'd forgotten about that one! I recall now that it was, indeed, a terrific read. - Bob Kingsley from twhirl

Most of the books on the list cant find it on my mother tongue - George The Writer

Yea I put in Ringworld. Thanks for all the suggestions folks. You've given me a ton of new books to read. - Steve Spalding

It's amazing the way that most probably know the majority of these stories by watching the films but NOT by reading the book. Occasionally a film will do the book justice (Animal Farm was a great adaptation and had a huge effect on me as a kid watching it at school) but not often. - Colin Walker from fftogo

One other book that I've always liked: "Wave without a shore" by C.J. Cherryh - an interesting look at perception and willpower and how they shape our "reality". - Colin Walker from fftogo

Yeah, you should really check out Jeff Noon, he's buzzing :) - Mark Edmondson