5 Stars = Phenomal. Drop what you’re doing and go to the bookstore right this second!
4 Stars = Exceptionally good. Definitely worth procrastinating on that work which needs doing.
3 Stars = You should certainly read it, but it’s not urgent.
2 Stars = Eh. Pick it up from the library or put it on your to-read list, but it’s not something you have to go out of your way for.
1 Star = I’ll never tell you to not read a book, but if I were the type of person to do that, these would be the ones.