I'm a seasonal reader. Right now it's Dracula. Cliched, maybe, but I'd never read it before and it's quite good.
If you're into YA, check out Book-Scout's Autumn Reading List! Part 3, which is her compilation of great YA novels perfect for reading in autumn. I'm embarassed I've never read any of them except Frankenstein, but I'm making a trip to the library ASAP.
For more fall reading, check out Andrea's Autumn Reading List for picture books and middle-grade books.
What are your favorite books to read in fall?