With book sales in excess of 600 million and rising, Joanne Rowling is the seventh best-selling writer in history - under her pen names of J.K. Rowling and Robert Galbraith.
Her Harry Potter books were a publishing phenomenon, before becoming a huge hit at the cinema box office with eight films starring Daniel Radcliffe, Emma Watson and Rupert Grint.
The Edinburgh-based writer then switched pseudonyms and genres, authoring the crime drama novels featuring private detective Cormoran Strike - now an ongoing award-winning BBC television series.
Millions of avid readers have had their say on her library of work on book website Goodreads.
Here are their top 10.
9. Troubled Blood
The fifth Cormoran Strike novel, Troubled Blood, was published in 2020 and scores an average rating of 4.37 from 129,096 reviews. "Private Detective Cormoran Strike is visiting his family in Cornwall when he is approached by a woman asking for help finding her mother, Margot Bamborough - who went missing in mysterious circumstances in 1974. Strike has never tackled a cold case before, let alone one forty years old. But despite the slim chance of success, he is intrigued and takes it on; adding to the long list of cases that he and his partner in the agency, Robin Ellacott, are currently working on. Plus the pair are still battling their feelings for one another, while Robin is also juggling a messy divorce and unwanted male attention. As Strike and Robin investigate Margot's disappearance, they come up against a fiendishly complex case with leads that include tarot cards, a psychopathic serial killer and witnesses who cannot all be trusted. And they learn that even cases decades old can prove to be deadly..." | Contributed
10. Lethal White
Completing our list is Lethal White, the fourth of the Cormoran Strike books, which have been turned into a successful BBC drama. Published in 2018, it scores an average rating of 4.24 from 168,699 reviews. "When Billy, a troubled young man, comes to private eye Cormoran Strike's office to ask for his help investigating a crime he thinks he witnessed as a child, Strike is left deeply unsettled. While Billy is obviously mentally distressed and cannot remember many concrete details, there is something sincere about him and his story. But before Strike can question him further, Billy bolts from his office in a panic. Trying to get to the bottom of Billy's story, Strike and Robin Ellacott - once his assistant, now a partner in the agency - set off on a twisting trail that leads them through the backstreets of London, into a secretive inner sanctum within Parliament and to a beautiful but sinister manor house deep in the countryside. And during this labyrinthine investigation, Strike's own life is far from straightforward: his newfound fame as a private eye means he can no longer operate behind the scenes as he once did. Plus, his relationship with his former assistant is more fraught than it ever has been - Robin is now invaluable to Strike in the business, but their personal relationship is much, much more tricky than that..." | Contributed