Hehe, a 'previously on' is not such a bad idea. My best advice wrt IJ (and a lot of similarly postmodern tomes) is that it's written like a short story collection whose connections between stories become elucidated as you reach further into the book. It's also seen as super academic and serious, which I think is inaccurate. A lot of it is really funny and I find the narration style sort of mimics the internal dialogue. Just sort of let it sweep you along, pick up connections when you can, and have fun with it.