I'm a big fan of lists, and particularly year-end lists. A simple Google search will probably direct you to several different personal blogs on which I have published my end-of-year favorite music lists over the past eight years or so. For me, lists are intended both as a form of self-analysis and as recommendations for my (modest, random) readership.
I am also a bit unconventional with these lists. I care less about the year that something was made than the year that I first experienced it. So, on the following list, you will find my 20 favorite books that I read (for the first time) in 2012. Some of the titles were published this year, others were written over a half-century ago. But they are all great books that you should read, and they are all, incidentally, in HCPL's catalog. So without further ado,
20 Books for 2012:
(1)

White Teeth by Zadie Smith (a gateway book if there ever was one, see below)
(2)

The Corrections by Jonathan Franzen
(3)

Cathedral by Raymond Carver
(4)

Bright Lights, Big City by Jay McInerney
(5)

Zeitoun by Dave Eggers