Before making this list I just want to mention that John Green is an absolute LEGEND, and all of his books are nothing short of a masterpiece: I highly recommend reading some of his novels if you haven't already!
#1 Paper Towns
This has to be my favorite John Green book of all time. This romance, mystery, and realistic story follows Quinton (Q) in his search to find Margo, his mysterious, daring, next door neighbor (and also crush since elementary school) who disappeared after their night of pranks together (a night that involved fish, SeaWorld, and underwear. Nothing more will be mentioned.. Read it to find out!) The characters, the voice and narration, the plot-line: everything about this book is absolutely astronomical and I highly recommend to everyone, but especially if you like romance, books that make you think, existentialism, and mystery.
#2 The Fault In Our Stars
I think basically the whole world has heard of this after it's major hype after 2012.. and the hype was well deserved! TFIOS follows Hazel, a girl with cancer who meets August in a cancer support group. This is a beautiful and sad love story and is narrated PERFECTLY, and will also probably make you question everything about life.
#3 Looking For Alaska
The PLOT TWISTS! WERE! IMPECCABLE! THAT'S ALL I'M GOING TO SAY!
Do you have a favorite out of these 3 books, or one that I didn't mention? Share your opinion in the comments below!