I read Ignore Everybody, Rework, and Originals which are all books about business and creativity. I liked all three, but Rework was my favorite. It had the most practical tips if you're into that sort of thing. Ignore Everybody is good for mindset, and Originals is good for an understanding of other businesses and how they operate differently than the masses.
I also read Deep Work which is a fascinating look at really taking the time to do the work to get projects done. It's a tough thing to do with a baby around, but I love the concept and think it's important to implement into life if you're doing anything that requires your creative brain.