Honestly, I stopped reading this book when the author insisted, if you are walking through a forest and you feel cobwebs on your face, that's the faerie because spidars don't live in trees. I don't know where the author is from but in my woods, not only do spidars live in trees but there are also butterflies that spin chrysalis, moths spin cocoons and even the trees themselves, make a silkie resin.
The author lost all credibility with me at that point and the book was just taking up valuable space in my bookshelf.
I thought this was a bit "fluffy". I also thought the author was really stretching things. His checklist of how you know if you've "potentially" had a faerie encounter was so generalized as to pretty much encompass everyone. He also seemed to ignore the more rational explanations for some of the things on the checklist. So, he kind of lost credibility for me there ... of course, I'm an atheist, so he didn't have much credibility to begin with.
Otherwise, I did find this book interesting ... if only for the stories/anecdotes in it.
This one just didn't seem on par with the other books he normally writes.
It's well-written and covers a variety of fairie-types, including: gnomes, dwarves, genies, elves, elemental spirits. For those looking to communicate with Nature Spirits, Elementals, and other various Faerie folk this will probably be useful.