Joanne “Jo” Rowling pen names J.K. Rowling, and Robert Galbraith is a British novelist. She is best known for the Harry Potter fantasy series. The Harry Potter novels have become the best-selling book series in history. The movies based on the Harry Potter fantasy novels became the highest-grossing film series in history. Under another pen name, Robert Galbraith she wrote 3 novels including: The Casual Vacancy (2012), The Cuckoo’s Calling (2013), and The Silkworm (2014). She was named the “Most Influential Woman in Britain” by leading magazine editors.