I went to see George R R Martin speak in New York last night. He said a few words, answered some questions and then signed copies of his new book, A Feast for Crows. Very crowded and hot and possibly the worst place ever for a book signing. But at least I sat up front and could see and hear him. See the pics here. If you don't know who George R R Martin is, check out his website and check out a site about his books, specifically the series I'm reading now.
He writes Science Fiction and Fantasy, and has been called "the American Tolkien". A very good writer.