A Goodreads user asked:
In which author name was this book released?
MissMangoReads J.K. Rowling, not Robert Galbraith. The Harry Potter books were her first books. She then released The Casual Vacancy as J.K. Rowling and The Cuckoos Calling as Robert Galbraith. Nobody knew that Robert Galbraith was her, and she let people read and judge her book, not based on her big name, but based on its quality. Then she revealed herself.