I think Joss Whedon is a writing genius. If I were to rank my 15 favorite authors, only two screenwriters would crack the list: Rod Serling and Joss Whedon. Check out Whedon’s Top 10 Writing Tips, then take a peek at this list of 50 Joss Whedon quotes.
As for Rod Serling, “American Masters” aired a great documentary about him that I dug up on YouTube. Lots of good information here.