Dur, me no read good-thinkum books. Me dun can't recommend none; sowwy.
But me cheer for fellow Canadian! Whoo-hoo! *approving grunts*
Translation: I've only read one short story of hers, but it was freakin' riveting, despite being wildly outside my usual cup of tea. So you're probably safe to choose anything of hers. She's good. She's been nominated for the Nobel many times.
I do know she has mainly written short stories, not novels. When asked in an interview once why she focused on shorter works, she (rather hilariously) explained it by simply saying, "I have kids."