The actual review isn't expanded - the bulk of the content is as it appears on my website, plus new illustrations, photos and art. But there's an in-depth intro, which is a juicy essay in itself, framing all the other essays with my current thoughts on prehistory and animism; there's also an appendix on the controversy of the Panorama Stone ladders, which is also new.
The book's a collection for people who don't use the web for more than casual reading, whether that's because they don't have access or because they get much more from reading print stuff - I know I do!