In no particular order (other than memory):
Fooled by Randomness - Nassim Nicholas Taleb (he's kind of a jerk, but gifted)
Sapiens - Yuval Noah Harari (beautiful, at the end I felt like i stared into the abyss of man)
The Idea Factory - Jon Gertner (great history of Bell Labs)
A Mind at Play - Jimmy Soni and Rob Goodman (interesting biography of Claude Shannon)
The Jungle - Upton Sinclair (first time, great book)
Dune - Frank Herbert (second time, great book)
Stranger in a Strange Land - Robert Heinlein (first time, great book)
Tribe of Mentors - Tim Ferriss (where I found out about lots of good books)
Einstein's Dreams - Alan Lightman (beautiful, poetic)
The Nature of Time - Carlo Rovelli (same as above, but a little less imaginative; i.e. fact based)
The Daily Stoic - Ryan Holiday (almost done, again)
American Gods - Neil Gaiman (first time, great book)
Ready Player One - Ernest Cline (read before the movie, really enjoyed it -- but i'm an 80's kid)
Not all the books I read this year, but those that stood out as good.
“Those who don't read good books have no advantage over those who can't.”
Mark Twain