A few! I like having different books for different places: one in the study, one for commutes, one before bed. Some way of dealing with a short attention span, I guess.
I've been trying to read more history, so currently enjoying The Mongol Empire, by John Man. It's a very literary and narrative history, so sometimes you wish there was a little more detail, but it's an incredible story, especially Genghis' original rise to power.
A fun fiction pairing with that has been The Coming of Conan The Cimmerian, a collection of Howard's original short stories in publication order. Everyone knows the Milius film with Arnold (which is great!) but Howard's Conan has a little more complexity.
Finally (and maybe a more relevant to the #bookstr folks who like finance/econ themes), I'm a little ways into The Laws of Trading by Lebron. It's definitely themed around trading decision making, but uses that to discuss more general principles for good decisions under uncertainty. The first quarter or so is good, at least!