Mostly I read sci/tech stuff dealing with my job. However, I have as my final mission in life to finish Durel's "History of Civilization". Excellent writing and in 12 volumes covers an awful lot of history. I read the first 3 volumes in a couple of years but getting through vol 4 is tough. I recently read Caesars, "Gallic Campaign" as a result of vol 4.
I'm also reading a survey of phenomenology. Its not easy reading.
A more interesting list is the books I've tried and faled to read. Great literature of ours and all times. "Gilgamesh" half-read and cast aside. "Laws of Thought" begun and now a dust collector on a forgotten shelf. Seminal books of art and science. All picked-up with high goals and dropped in low defeat. Perhaps my greatest failure was "Origin of the Species." I'm a evolutionist and botanist, for goodness sake and can't even read the most important work ever written in the biological sciences.
Similarly, I have been repeatedly defeated by, "Beowulf". Ah-hah, but in that I've cheated! I bought a 2-disc CD set in which Beowulf is translated into modern English and read aloud by an Irish poet. Believe it or not, its a pretty good story.
http://www.amazon.co.uk/exec/obidos/ASIN/0141802472/ref=pd_bxgy_text_2_cp/026-3549235-1783618
Botnst