This Oct. 16, 2012 photo shows author J.K. Rowling at an appearance to promote her latest book “The Casual Vacancy,” at The David H. Koch Theater in New York. Rowling, the popular author of the “Harry Potter” series, spoke for just over an hour before a capacity crowd in her sole U.S. public appearance to promote her first novel for grownups. (Photo by Dan Hallman/Invision/AP)