Atwood is one of my fav authors of all time. If you read Oryx and Crake, you simply must read The Year of the Flood, it's set years later. (I'm pretty sure I've posted the cover ITT, in fact).
Go on an Atwood binge, she's worth it. I studied a lot of CanLit at university, I should know. Highlights are: Alias Grace, a haunting tale written by a woman accused of murder...and another dystopian snapshot in The Handmaid's Tale. That's always been one of my fav books of hers, I have a first edition that I got signed when I met her once. I don't get starstruck easily but that was a happy day. Her poetry is incredible too, if you're into that shit.