Adam John Sztykiel is an American television and film producer and screenwriter known for such television series and films as Undateable, which he also created based on the book Undateable: 311 Things Guys do That Guarantee They Won't be Dating or Having Sex by Ellen Rakieten and Anne Coyle, Due Date, and Made of Honor. Description above from the Wikipedia article Adam Sztykiel, licensed under CC-BY-SA, full list of contributors on Wikipedia.