Under what pseudonym was The Cuckoo’s Calling first published?

The Cuckoo’s Calling was first published under the pseudonym Robert Galbraith.

The crime novel appeared in April 2013 and introduced Cormoran Strike, a private detective in London. Strike investigates the death of model Lula Landry with help from his temporary secretary, Robin Ellacott. The book was presented as the debut of an author named Robert Galbraith.

The pseudonym concealed J.K. Rowling’s involvement until a Sunday Times investigation reported that she was the author. Rowling subsequently confirmed the authorship. The revelation caused the novel’s sales to rise dramatically and made the book’s publication history part of its public identity.

The title is sometimes confused with the name of the detective, but “Robert Galbraith” is the author name, while “Cormoran Strike” is the fictional investigator. Later entries in the series continued to use Galbraith as the credited author.