Absolutely a necessary read, and so, so good. Foucault is I think really clear in this book, and makes his points about normalization and carcerality so, so well. I was left with a lot of questions, in a really generative way, and I definitely want to push out and read more. I'd say if you're looking to get started with Foucault, start here, because it's so foundational to so much more and is honestly still incredibly relevant for thinking through power and knowledge.