I've been reading awful awful cheap old paperbacks.
Never read Red Mars though, hard sf from what I heard.
Ooh. I've read red mars. I loved it, a very human story interwoven with very believable tech. The second one became far more political and by the third I found it all a bit depressing and gave up. Although this could just be a symptom of how badly we as humans would handle the actual situation. So strong YMMV.