Read, ha, who still does that. Most of the books i consume are in audio form now. makes it so much easier when i am at work. I have probably spent a small fortune on audio books but it has been well worth it.
Anyway, i would have to say that my most favorite serious is the Ender's Game and Shadow of the Giant series by Orson Scott Card. Great, great books that i highly recommend to anyone.
I could list all the books i have read but that would be going into the 80's range and i don't fell like typing that much.
Survivor - Pulahniuk
Coke - Pulahniuk
The Wasteland - Eliot (a poem but still my fav.)
The Sun Also Rises - Hemingway
Junky - Burroughs
The Metamorphosis - Kafka
Crime and Punishment - Dostoevsky
The Day of the Locust - West
How can you ask me to pick just one? There's The Hitchhiker's Guide to the Galaxy, The Long Dark Tea-Time of the Soul, The Cost of Discipleship, The Great Gatsby, The Great Divorce, Do Androids Dream of Electric Sheep?, and a buch more.
If I had to pick just one, I would pick Crime and Punishment by Fyodor Dostoevsky, and A Tale of Two Cities by Charles Dickens.