Answer:
Joanne K. Rowling.
Step-by-step explanation:
Joanne Rowling, or more famously known as J. K. Rowling, is the writer of the very famous book series Harry Potter. Her books are also already made into a movie which succeeded tremendously.
When she first wrote "Harry Potter", she simply put her full name "Joanne Rowling" in the author's space. But her publishers fear that the targeted young boys may not like to read a book written by a woman. So, they advised her to use two initials as a pen name, rather than use her full name. As she doesn't have a middle name, she had to take her paternal grandmother's name as her middle initial pen name. So, the initial K stands for Kathleen, thus becoming J. K. Rowling instead of Joanne Rowling. She didn't even use her husband's name Murray.