Just finished reading Graeme Simsion's The Rosie Project, and loved it. I can't describe the plot, because to do so would be to give away too much of the essential character of the book. Suffice it to say, the story is charming. It's a brisk read that'll take just a few hours of your time, yet leave you seeing the world through protagonist Don Tillman's eyes for days afterward.
Next up, a different sort of book: William Styron's Lie Down in Darkness.