Helliconia Summer - Brian Aldiss
Oh! Brilliant!
I'm amazed you were even able to find that, unless you've had it on your bookshelves for a couple of decades- or they've made a film of it. Aldiss and all the other old masters have been totally elbowed off the shelves by Terry Pratchett, so far as I can see.
Umm...I'm supposed to say what I'm reading now. Errr...nothing much, unless you count surfing the web, and dipping into my poetry collection at random intervals (e.e. cummings "selected poems " is my perennial favourite)