* AcclaimedFlop: She wrote a detective novel called ''The Cuckoo's Calling'' under the pen name Robert Galbraith that received strong reviews but only sold about 1,500 copies. However, sales increased sharply after the author's true identity was revealed.
** She never actually wrote the first book on the back of a napkin (she had napkins but was too shy to borrow a pen, so she had to spend the entire trip juggling the story in her head). When she heard this rumour, she laughed and joked that they'll be saying that she wrote it on teabags next.
** Nor is she the playwright for ''Theatre/HarryPotterAndTheCursedChild'', as was also widely reported; Jack Thorne is writing the book based on a story by Rowling, Thorne and John Tiffany. This confusion is at least more understandable, as she ''is'' writing the screenplay for ''Film/FantasticBeastsAndWhereToFindThem''.
* CreatorBacklash: She's understandably not too happy about her work being the TropeNamer for DracoInLeatherPants. For the most part, she's laughed it off, but is nonetheless nervous about the influence this mindset might have on young women.
* CreatorBreakdown: Early on in the makings of ''Harry Potter'' her mother passing away from a years-long battle with multiple sclerosis influenced the more emotionally heavy moments in the story. The theme of death in the last novel was rooted to a lot of Rowling's own feelings about the subject and her faith.
* ExecutiveMeddling: Actually, [[InvertedTrope she was the executive]], and prevented some more "questionable" decisions that Warner Bros. was looking to do with the stories, one of the most famous being her demand that the films be filmed in the UK with a cast of UK actors.
* GodNeverSaidThat: The rather infamous ShipSinking [[http://www.mugglenet.com/jkrinterview2.shtml interview with Mugglenet]]. Rowling got attributed with a certain faction of shippers for calling them delusional, when it was actually the interviewers who stated it.
--->'''Emerson Spartz''': We thought it was clearer than ever that Harry and Ginny are an item and Ron and Hermione - although we think you made it painfully obvious in the first five books -\\
'''Creator/JKRowling''': [points to herself and whispers] So do I!\\
'''Emerson Spartz''': What was that?\\
'''J.K. Rowling''': [More loudly] Well. so do I! So do I!\\
'''Emerson Spartz''': Harry/Hermione shippers: delusional!\\
'''J.K. Rowling''': Well no, I'm not going to - Emerson, I am not going to say they're delusional! They are still valued members of my readership! I am not going to use the word delusional.
** And seven years later, it comes full circle with [[http://www.hypable.com/2014/02/01/jk-rowling-ron-hermione-relationship-regret-interview/ J.K. Rowling admitting Harry and Hermione could have worked out together.]]
** To wit, she admitted that the pairing of Ron/Hermione was partly WishFulfillment, and that it might not have worked out as an adult relationship, while simultaneously confessing that she felt that Harry/Hermione ''could'' have worked (which, frankly, she has stated before). She mentioned (in the same interview) that while Ron and Hermione could still work, she could have written it better and for the right reasons.
** She turned down Music/MichaelJackson's offer to write a HP musical.
** How might HP have turned out had her mother not died?
** The original pitch for the Harry Potter film was for it to be a CGI film, with Haley Joel Osmont being the voice of Harry, and taking place in America. [[ExecutiveVeto Rowling nixed that.]]
* WordOfGod: Lots of it, but most famously the WordOfGay on Dumbledore.
* WriteWhatYouKnow: The first Strike novel carries a spirited denunciation of the British tabloid press (which spent years intruding into Rowling's life--and not always in a peaceful manner, either). The second Strike book revolves around novelists. Gee, I wonder where she got that idea?