Most original, exciting, fresh, mindblowing? Doesn't have to be theory, non-fiction, or even leftist. I just wanna get to know more exciting books.
My own answers:
Non-fiction: Debt - The Last 5000 Years and A Paradise Built In Hell were paradigm shifts for me, in a great way.
Fiction: Gonna have to be The Trojan War Will Not Take Place. Yes it's a play from 1935 but it was more interesting for me than many more current books, and the anti-war message is unfortunately still fresh.
Non-Fic: Fragments of an Anarchist Anthropology by David Graber. My dad gave it to me years ago and I finally got around to reading it a couple months back. I wanna read Bullshit Jobs and Debt now, to honor that cool dude.
Fic: Parable of the Sower by Octavia E. Butler. Pretty much just wow, just an account of five years from now.
tbh with BS Jobs you should just read the essay. The book feels a bit like someone who got a book deal to expand a viral listicle. Admittedly, I only read the first two chapters of the book before I gave up on it, but it didn't feel like there was that much more there.