Answer: J.K. Rowling
J. K. Rowling, British writer and bestselling author Harry Potter was born Joanne Rowling. This name was printed on the copyright page of the first issue of the bestseller ] Harry Potter and the Philosopher's Stone while the initialized version of her name was used on the front page. Her publisher ̵
They insisted that she publish with her initials to mask her gender and not to alienate potential readers. Since she had no middle name, she took the name of her paternal grandmother, Kathleen Rowling, as her middle name. Later editions of the first book and all editions of the following six books all used the name JK Rowling on the covers and copyright pages.
The Harry Potter series sold more than 500 million books worldwide, making it the # 1 best-selling book series ever. Maybe there is a kind of magic in publishing, if you only use your initials. The second best book series of all time is the series of L. L. Stines Goosebumps with 350 million sales. Other notable and initialized best-selling 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).
Courtesy of J.K. Rowling.