When I first read this book,I was completely put off by it and seriously thought of returning it.It presents a totally negative view of the problem,and concludes that there is absolutely no postive evidence for the existence of the Loch Ness Monster,or any other lake monster for that matter. Being a strong believer,I was ready to reject this idea.
Later,I realized that when examining the evidence,it is very important to look at both sides of the story.For instance,regardless of my pro-monster status,I now concede that the "Surgeon's Photo" is in fact a hoax,as well as Lachlan Stuart's "3-hump" photo. The famous "gargoyle head" photo snapped by an underwater camera most likely shows an engine block used as an anchor (but the other underwater phots arte still very interesting).
As to the book itself,it is a bit difficult to read-the author refers to the Monster as "N",the loch as "L. Ness",and uses a whole series of abbreviations,which make for some interesting,as well as confusing sentences. He also make many seemingly solid declarations without giving sources,the most common being that a film or photograph (pick one,any one) has "long been rumoured to be a hoax."
Summing up-if you a Monster enthusiast,by all means,read this book,but be prepared for a completely negative view of the whole matter,and remember that it is important to examine all sides of the issue.