The Dallas Museum of Art sponsors literary events every year under the Arts & Letters Live banner. Last year, I saw Christopher Moore, David Sedaris, and Neil Gaiman. I was reading through the list and wasn't very excited about the line up until I got to April.
24 S. E. Hinton, 7:00 p.m. BOOKSMART "Big D Reads a Timeless Classic" Order tickets online
This is a free event. If you are going to be in Dallas on April 24th, you only have to register.