I am glad I bought this, as it provides insight into nearly everything WHO. One doesn't have to agree with Mr. Campbell's opinions (more often than not I do, but in some cases my viewpoint is totally the opposite!) to still get valuable insights in the various serials and episodes. The evaluation also extends to discussions of books - or at least the author rates them, and there the author regrettably omits the mentioning of all the excellent novelisations of the serials as such. This is a pity as, in the case of the early eras, for many adventures it is only possible to relive the stories by reading them. The original TV episodes are all gone (think for example of "power of the daleks" of which only a few clips as well as the novelisation remain, alongside many others of the Hartnell and Troughton eras), and if you wish to enjoy them you must read.
The author also discusses various side productions (theatre, audio plays, movies, spin offs, spoofs, etc.) including the wonderful "the curse of fatal death". At least the author and me agree on that one, totally. Books like the Who annuals, the monster and allien books, publications on companions, dictionaries and encyclopedias etc. are not included. That is allright with me - one can see this as BBC merchandise or something, and therefore not as a serious part of the serials and novels.
Except that the wonderful Dalek Survivor Guide dated 2002 is not included either. And that is a shame!
For good order, one should understand that if one wants to read summaries of the various plots - this is not your book. The plot outlines are woefully short, but the evaluations of the serials generally are very insightful in relation to how much excitement a certain serial or episode will have offered. Also one should realise before buying that this is not an illustrated book.
On the whole I am pleased with this book, as it covers the whole long period of time during which the series exists (even if taken out of the air for quite some time).