This is somewhat different from previous books in the series in that only roughly a quarter of the volume deals with Doctor Who on TV; the remaining three quarters concern themselves with the Virgin line of New Adventures books which Sandifer treats as regular continuation of the show. Which means that she does her usual spiel of first embedding the novel she i writing about in its context of pup cultural and material history before proceeding to analyse the book itself and to place it in the context of Doctor Who.
Seeing how the TV show got cancelled in 1989 it makes sense to move from TV episodes to novels, all the more so since those were published at regular intervals and did carry the torch of Doctor Who through what has come to be known as the wilderness years. Sandifer makes a smooth transition from visual to literary medium as the subject of her essays, and throughout the whole book makes a convincing case that the Virgin series of novels laid a lot of the groundwork for the shape the show was to take at its eventual resuscitation on TV in 2005.
This book keeps up the high standard of writing as well as the high densitiy of insights offered that one is accustomed to from Sandifer's writing. Since I have not ever read any Doctor Who novel at all (and am unlikely to, considering the extraorbitant prices they charge for the ebooks), for most essays in this volume of TARDIS Eruditorium I lack knowledge of the source they relate to, which makes for a somewhat disconnected and sort of flat reading experience. I hasten to add, and really want to emphasise, that this is through no fault of the author and that the volume is a quite enjoyable read that does an excellent job of giving a reasoned overview of the pre-TV movie wilderness years. In short, TARDIS Eruditorium continues to be an excellent series (and by the time I am writing this, I am already quite far advanced in volume 8 and poised to start on the new series, both the TV shows and Sandifer's essays).