Mine was the wonderful One Thousand Autumns of Jacob de Zoet.
I am a long term fan of David Mitchell (that is the literary one not the budding national treasure one) and knew I would like 1,000 Autumns but was not prepared for quite how much I would love it. It is a novel about understanding, how we communicate with others who speak another language. How different cultures communicate, trade, dominate, serve, love and hate. It has a massive sweep over modern history and examines the relationship between East and West. A novel set in 1800 yet speaking to us in the 21st century.
So what did you enjoy reading in 2011? By that I mean books you read in 2011 regardless of when published.