Which pseudonym did J.K. Rowling use for the 2013 novel The Cuckoo’s Calling?

J.K. Rowling used the pseudonym Robert Galbraith for her 2013 novel The Cuckoo’s Calling. The book introduced private detective Cormoran Strike and his assistant Robin Ellacott.

The novel was initially published as the work of an unknown former military police investigator named Robert Galbraith. Rowling’s authorship was revealed later in 2013, after an analysis identified similarities between the writing styles.

The pseudonym gave Rowling an opportunity to publish outside the immediate expectations attached to her Harry Potter name. Robert Galbraith became the credited author of the Cormoran Strike series, while Rowling continued to write the books.