Novels:
* Looking for Alaska (2005): His debut novel, a coming-of-age story about Miles "Pudge" Halter, who falls in love with the mysterious Alaska Young.
* An Abundance of Katherines (2006): A witty and humorous tale of a teenage genius who has been dumped by 19 girls named Katherine.
* Paper Towns (2008): A mystery about Quentin "Q" Jacobsen, who embarks on a search for his long-time crush, Margo Roth Spiegelman, who mysteriously disappears.
* Will Grayson, Will Grayson (2010): A collaborative novel written with David Levithan, following the stories of two teenagers with the same name who live in different worlds.
* The Fault in Our Stars (2012): A bestselling novel about Hazel Grace Lancaster, a teenager with cancer who falls in love with Gus, a charming cancer survivor.
* Turtles All the Way Down (2017): A deeply personal novel about Aza Holmes, a teenager struggling with anxiety and OCD, who gets caught up in a mystery involving a missing billionaire.
* The Anthropocene Reviewed (2021): A collection of essays reflecting on the impact of humans on the Earth.
Other Works:
* Let It Snow (2008): A collaborative novella, co-written with Maureen Johnson and Lauren Myracle.
* The Fault in Our Stars Screenplay (2014): He adapted his novel, *The Fault in Our Stars*, into a screenplay for the film.
* Vlogbrothers (2007 - present): A popular YouTube channel with his brother Hank Green, where they discuss various topics and promote literacy.
John Green's works have received critical acclaim and numerous awards, including the Printz Award and the Michael L. Printz Award. He is known for his engaging writing style, relatable characters, and thought-provoking themes.