Books on parenting more than one kid?

Ka

We’re currently expecting #2 (hooray!). Our son will have just turned two when his sister is born. We feel medium-confident that we have this “parents of an only child” thing under control, but have heard rumors about there being a new ballgame?

I’d like to prepare for this new ballgame to the extent I can. Tips and tricks are appreciated too, but if you know any books we’d love some suggestions.