I got this book after I first met the author. She seemed very creative and nice to chat with. I was hoping her book would reflect that. Not entirely, but after a few chapters I started to realize how useful the book was to me.
At first you'll notice the book reads like a thesis. It confirms to scientific convention and this makes it a little too structured and so it lacks depth, excitement and the invitation to continue reading, at first anyway. It does turn up just a little late, but it does arrive so who's complaining.
I am doing a PhD on an essential oil and what I found was that there is a lot of information out there that needs to be examined, cross referenced and logically structured before one can draw any conclusions. As a result of this it took me a long time to realize the correct pronunciation for monoterpene alcohols, which joy conventionally calls monoterpenols. This gave me great satisfaction, because after some reading I came to realize that she's already done all the hard work pulling this information together - now I can read it all at a leisurely pace and exert little effort, as I did before.
This book has turned out to be one of the better books I have on the topic because it has enabled me to feel more confident discussing with other professionals in the field. Joy avoids getting too wordy, she also dishes the information out at a comfortable learning pace so as not to frighten you away.
Seriously, if you want to learn essential oil chemistry and how it applies to your health, start here. If you are starting from zero, definately start here. If you are starting from half way up the rung, like myself, this book is still a good read because it answers many annoying questions - like are my monoterpene dominated essential oils going to be any good in assays for anti-inflammatory capacity - answer is not really....
Five starts because I really couldn't give it four when it has made such a come back from the first few boring chapters. I recommend this book. Cheers.