The best book so far I have read so far on the matter, the late Ivan Banks researched everything down to the last letter the diagrams and floorplans are also the best I have seen .
Very well researched and extremely thorough but seems to suffer from a curiously archaic writing style coupled with a great deal of conjecture about the identities of the ghosts. I particularly found the habit of including multiple lists throughout a bit odd. It is also arranged in quite a peculiar way. It made an interesting read though.
This is the GO-TO book for all research on the Borley Rectory haunting, a famous case in England. A must have for the paranormal book collectors. Technical but still very frightening because it all happened!!