What was J.K. Rowling’s first published work using the name Robert Galbraith?

J.K. Rowling’s first published work under the name Robert Galbraith was The Cuckoo’s Calling.

The crime novel was published in 2013 and introduced Cormoran Strike, a private detective who investigates the death of model Lula Landry. Robin Ellacott begins working as Strike’s temporary secretary and becomes a central character in the series.

The book initially attracted modest attention under the Galbraith name. Its sales changed dramatically after Rowling was identified as the author, showing how strongly an author’s established reputation can affect a book’s visibility.

The title is sometimes confused with The Silkworm, which is the second Cormoran Strike novel. The books share characters and a detective partnership, but The Cuckoo’s Calling is the series opener and the first Galbraith publication.