It's a book about AI and ML, especially where they bump into ethical questions. Part of the problem we get into is… computers nowadays (as in the past) are good at things humans are bad at; but bad at things humans find simple. E.g., Watson is really good at playing Jeopardy!, a game which requires knowledge of all human trivia. But if you narrow down Watson's scope and tell it "now just concentrate on diagnosing diseases from this tiny little set," it does rather poorly. The good news about this book: it's a highly-readable overview. The bad news about this book for me: I've been following enough of these issues in the news such that I wasn't really in the mood for an overview.