By J. K. Rowling, Rowling, J. K.
By Rowling, J. K., J K, J.K.
By Ballard, Jenna
By Thornton, Nicki
By Rowling, J. K.
By J. K. Rowling
By BBC
By DK
By Rowling, J.K., J.K. Rowling
By Swank, Samantha
By Centum Books Ltd
By J. K. Rowling, Jim Kay
By J K ROWLING
By Elizabeth Dowsett