Night Photography and Light Painting e-Book

Just found this e-book link. It's a subject that comes up relatively often in posts and so I'd be interested if anyone has seen or heard about this e-book.
For US$20 I'd like to hold it's glossy paperback cover in my hand, but if the information is good, would probably still be a good investment.
His blog is here.
For US$20 I'd like to hold it's glossy paperback cover in my hand, but if the information is good, would probably still be a good investment.
His blog is here.