I found the text and illustrations extremely interesting, although the text may sometimes be abstruse. Having to use one's brain, or a dictionary, from time to time is not a bad thing. An interest in the subject of abstract photography, or in the author's words, "undisclosed photography", "a vision of things that have not yet been seen", certainly makes the effort worthwhile. Could the same points have been made more simply? Yes. That would not have been a bad thing either.
Writing this review, I find that I want to read the book again and spend more time with its images. The book offers a fresh approach to the history of photography, one that I think is important as art photography meets the digital age.