An excellent book, but, as other readers said, could do with a revision. The author deals with homosexuality almost as a deviation, putting it into the same chapter as Freudian perversions and obsessions. It's right to think that Holmes wasn't gay (though the ambiguity of not knowing if he was or not enriches the character- an example is BBC Sherlock's series)but labeling the theory as morbid, pornographic and unpleasant is going a bit too far. I understand this book was written in the 80s and reflects pre- AIDS and gay liberation ideas...but one would expect more openmindedness from a learned man like Mr Redmond.
Anyway, his chapters on Doyle, Irene Adler and Watson are fascinating, and that's what saves the book.