Which fictional detective series does J.K. Rowling write under the name Robert Galbraith?

J.K. Rowling writes the Cormoran Strike series under the name Robert Galbraith.

The series follows Cormoran Strike, a private detective, and Robin Ellacott, who becomes his professional partner. The books are contemporary crime novels set mainly in and around London, with investigations driven by interviews, evidence, and sustained detective work rather than magic.

The first novel, The Cuckoo’s Calling, was published in 2013. Rowling’s authorship was initially kept secret, but it became public after the pseudonym was revealed. Later books continued to be marketed under the Robert Galbraith name.

The series is distinct from Rowling’s Harry Potter novels and from her adult social novel The Casual Vacancy. Its recurring characters and investigations make it a continuing crime-fiction sequence rather than a single standalone mystery.