arethuza

GEB is an excellent books

Frank Herbert, Dune

My hardback copy of Anathem self destructed through continual re-reading of favourite parts.

Neal Stephenson, Anathem

Recent favorites of mine: Anathem - Neal Stephenson

I read Catch 22 when I was about 14 or so - it was literally the first "grown up" novel that I read that wasn't dry science fiction and it completely enthralled me.

and Permutation City

and A Deepness in the Sky

Vernon Vinge: A Fire Upon the Deep and A Deepness in the Sky

the unabridged Audible version of Neal Stephenson's Baroque Cycle - I couldn't get into the book form but the audio book version is great.

Greg Egan, Diaspora and Permutation City

Iain M Banks, Use of Weapons

Use of Weapons is particularly strong.

Kim Stanley Robinson, the Mars trilogy

the Commonwealth Saga - the latter is much better but still suffers a lot, in my view, from poor characterization