"Precious Blood" by Jonathan Hayes -- a brilliant author AND BANDSTER. He's a regular poster here, although he doesn't advertise his book on the site. For that reason, I'll keep his username to myself. Those of us who know him, love him. It's a brilliant crime thriller, in the vein of Kathy Reichs and Patricia Cornwall.
Also, "Shantaram" by Gregory David Roberts. A very thick book, but amazingly worth it. It is the autobiography of a man who escaped from prison in Australia, then went on the run, ended up in India living in the slums and became a psedo-"slum doctor". He ended up returning to serve out his sentence then setting up medical clinics and so on in the poorest parts of India. He is inspirational, and has an amazing way with words.
And, of course, for those of us who are determined never to eat junk foods again, "Fast food Nation" by Eric Schlosser.