Answer: J. K. Rowling
J. K. Rowling, British novelist and author of the best-selling Harry Potter fantasy, was born Joanne Rowling, and it was the name written on the copyright page for the first release of Best Sellers Harry Potter and Philosopher's Stone while the original version of her name was used on the front. Her publisher ̵
They insisted that she publishes using her initials to mask her sex and not trigger potential readers. Since she had no middle name, she adopted the name of her grandfather's grandmother Kathleen Rowling to act as her middle name. Later editions of the first book and all editions of the following six books used all the name JK Rowling on the front pages and the copyright pages.
The Harry Potter series has been selling more than 500 million books worldwide, making it the best-selling boxing series all the time. Perhaps there is some kind of magic in publishing when you only use your initials; The second best-selling box series of all time is R.L. Stines Goosebumps series with 350 million sales. Other noteworthy and initialized bestselling authors include C.S. Lewis (The Chronicles of Narnia – 120 million books), J.R.R. Tolkien (The Lord of the Rings – 150 million books and The Hobbit – 100 million) and J. D. Salinger (The Catcher in the Rye – 65 million books).
Image courtesy of J.K. Rowling.