FICTION
The Art of Fielding by Chad Harbach - This seems like a book that my dad, a rabid baseball fan, will love. 
11/22/63 by Stephen King - Another confession: I have never read any King!  This one combines time-travel and historical fiction, which are two of my favorite genres.  I think I'm adding it to the to-read list.
SWAMPLANDIA! By Karen Russell - Sounds interesting.  Another one for the list.
Ten Thousand Saints by Eleanor Henderson - This sounds depressing but beautiful.  
The Tiger's Wife by Téa Obreht - Already on my to-read list.  I"m looking forward to reading this one!
NONFICTION
Arguably: Essays by Christopher Hitchens - Not a Hitchens fan.  He is just too obnoxious about his atheism, and it's grating.
The Boy in the Moon: A Father’s Journey to Understand His Extraordinary Son by Ian Brown - This book is intriguing.  I am ready to read it!
Malcolm X: A Life of Reinvention by Manning Marable - Sounds interesting, but probably doesn't cover any new ground.
Thinking, Fast and Slow by Daniel Kahneman - Psychology of thinking is always fascinating.  It's on the list now.
A World on Fire: Britain’s Crucial Role in the American Civil War by Amanda Foreman - I previously reviewed Foreman's Dutchess.  I am really looking forward to reading her new book.