Phil Purser-Hallard, one of the smartest people I have the pleasure of knowing, came up with a simple but brilliant idea for a range of books; in-depth studies of single Doctor Who stories by a bunch of talented writers with interesting things to say. I've got the pleasure of being included in the first batch of books with a piece on the episode that launched Doctor Who back to the heart of popular culture. Think the Doctor Who equivalent of the excellent 33 1/3 books.
These are going to be magnificent. Further details here and whilst you're there you really should open your virtual wallet for a few of Obverse's other fine books.