I'm reading a lot of different things at the moment, but the most prominent stuff remains:-
Fiction-wise, I'm working through my backlog of EBERRON novels -- I'm at Flight of the Dying Sun, which is the second book of the "Heirs of Ash" trilogy by Rich Wulf.
Non-fiction would be Tycho and Kepler: The Strange Partnership that Revolutionised Astronomy by Kitty Ferguson.
Oh, and, I'm re-reading some old DRAGON Magazine issues, my old copies of Marvel's Warlock and the Infinity Watch, and the WARHAMMER Armies: Beastmen supplement.