I have 2 days to spend 50 euros on books. any reccomendations?

so in my country when you turn 18 you get a couple hundred euros for culture. anything from books, art supplies, movie tickets and much more are free for all and you can use this money until your 20th birthday

my 20th birthday is on the 28th but I can make book reservations until the 27th

now i've taken this moolah for granted for a little bit because I thought I didn't need it. I already bought a few books that aren't the manga Banana Fish because that's mainly what I spent it on

Any good book suggestions? Nothing too scary/gorey/erotic please I live with my middle aged dad

Thank you all ! 🙂