I started 12 books and completed 11 books in 2012.

Completed:

• (25) Worldwalker (2) Wayfinder by C E Murphy (Fantasy)
  Lara Jansen is a truthseeker, gifted - or cursed - with the magical ability to tell honesty from lies. Once she was a tailor in Boston, but now she has crossed from Earth to the Barrow-lands, a Faerie world embroiled in a bloody civil war between Seelie and Unseelie. She seeks the Faerie prince Daffyd ap Caerwyn, whom she last saw near death. But he is missing. Armed with a magical staff both powerful and perilous, she seeks both him and the truth; but will that truth save the Barrow-lands or destroy them?
  completed H Start:2011-12-31 End:2012-1-1 (fantasy)
  second book in the duology
• (26) Elbow Room by Marion Zimmer Bradley (SF)
  I am glad that I love them; I'd hate to think that some psych-tech made me love them! Because they are sweet, dear, wonderful, lovable people. All of them. As long as I don't have to see them very often.
  completed M Start:2012-3-11 End:2012-3-11 (sf)
  short story by MZB
• (8) Our Friend The Dog by Maurice Maeterlinck, Alexander Teixeira de Mattos (Biography)
  I have lost, within these last few days, a little bull-dog. He had just completed the sixth month of his brief existence. He had no history. His intelligent eyes opened to look out upon the world, to love mankind, then closed again on the cruel secrets of death.
  completed H Start:2012-4-27 End:2012-4-27 (non-fiction)
  the story of a dog
• (27) Chalice by Robin McKinley (Fantasy)
  How can Mirasol, a simple beekeeper, be Chalice to a Master who is no longer human, whose touch can burn flesh to the bone?
  completed H Start:2012-7-29 End:2012-8-3 (fantasy)
  new world by Robin McKinley
• (7) Liaden Local Custom by Sharon Lee, Steve Miller (SF)
  completed M Start:2012-8-9 End:2012-8-15 (sf liaden)
  Audiobook read by Michael Shanks
• (28) Omnilingual by H Beam Piper (SF)
  completed M Start:2012-8-17 End:2012-8-21 (sf)
  dated but still good
• (6) Liaden Balance Of Trade by Sharon Lee, Steve Miller (SF) [2004-03-11]
  completed M Start:2012-9-2 End:2012-9-4 (sf liaden)
  I like space-traders
• (5) Tinker (1) Tinker by Wen Spencer (Science-Fantasy) [2007-12-11]
  Inventor, girl genius Tinker lives in a near-future Pittsburgh which now exists mostly in the land of the elves.
  completed H Start:2012-9-4 End:2012-9-5 (sf fantasy)
  having a comfort read
• (4) Tinker (2) Wolf Who Rules by Wen Spencer (Fantasy) [2008-07-16]
  Wolf Who Rules finds himself besieged from all sides in this sequel to Tinker.
  completed L Start:2012-9-5 End:2012-9-6 (fantasy)
  started, need to try again
• (3) Sons Of Destiny (1) Sword by Jean Johnson (Fantasy, Romance)
  The first of the Sons of Destiny
  completed M Start:2012-11-13 End:2012-11-18 (fantasy)
  First in the Sons of Destiny series
• (29) Pride and Prejudice Unexpected Miss Bennet by Patrice Sarath (Historical, Romance)
  It is a comforting belief among much of society, that a plain girl with a small fortune must have no more interest in matrimony than matrimony has in her...
  completed Start:2012-12-22 End:2012-12-23
  PnP sequel about Mary

Incomplete:

This doesn't count the ones I reverted the "start" date on.

• (252) Wired For Story by ?Lisa Cron (Non-Fiction)
  The writer's guide to using brain science to hook readers from the very first sentence.
  pending H Start:2012-10-1 (nonfiction)
  Stories are stone-age flight simulators

Gave up on: