Wicked Problems is the second book in Max Gladstone's Craft Wars trilogy, a trilogy meant to conclude Gladstone's Craft Sequence (so really this is book 8). The first book in the trilogy - Dead Country - was a really quiet book for the series, featuring a Seven Samurai/Magnificient Seven-esque setup with a Western-esque town facing off against monstrous Craft-warped invaders and only suriving thanks to the help of series heroine Tara Abernathy, Craftswoman, and her newfound apprentice Dawn....before things go awry between them (spoilers after the jump). It was a very emotion and character driven book, limited to this single setting.
Wicked Problems is still character driven at its best, but the book has expanded to focus on the entire Craft Sequence world and is basically a Superhero/Supervillain team-up (think: the Avengers) for the entire series. Tara and Dawn - now on seemingly opposite sides - are joined by almost every major named characters from the original six books, and honestly, the result is kind of a mess, with so many character motivations and developments that it and any themes involved getting far more muddled than they ever have before in the prior seven books. Gladstone makes it work as well as he could, and his writing remains propulsive and highly enjoyable especially in its quirks and dialogue, but this is a surprising miss, and not the greatest sign for a second book in a concluding trilogy.