MaddAddam (MaddAddam #3), by Margaret Atwood

I always get nervous about the last book in a trilogy, but she did an amazing job with the wrap-up. Without spoiling anything, I can only say that back stories were filled in, characters beautifully fleshed out, loose ends artfully wrapped up, and the main story brought to a satisfying and poetic close. In retrospect, it's clear that the main themes of the series are storytelling, different viewpoints, whether a given action is heroic and noble vs utterly monstrous, and the interplay between all of those things. We do get a little bit of the ambivalent-relationships-between-women motif that is sort of MA's calling card, but it's side story rather than really thematic. Incredibly well-done.