1/5 stars: Waste of time.
2/5 stars: Meh. I feel nothing towards the book.
3/5 stars: Good book, but nothing special.
4/5 stars: Loved the book, but there were some faults.
5/5 stars: Thoroughly enjoyed reading the book. Zero faults. / OHMYGAD THIS BOOK RUINED MY LIFE BUT IN A GOOD WAY AND NOW I’M GOING TO STARE AT NOTHING FOR HOURS AND JUST THINK ABOUT THE BOOK PLEASE DO NOT DISTURB.
P.S.: I use half-stars in my reviews.