It's not a Photographic memory technique because the mind processes the information. If it relied on photographic memory you'd just be turning your head into a library and still traditionally reading the book to get what you need from them.
PhotoReading uses our natural ability for implicit learning.
After PhotoReading you have little to no conscious knowledge of what you saw. Start asking the right questions and looking at the right parts of the book you get it together much faster than traditionally reading. Remember one of the tips of superreading and dipping - stop dipping before you think you're finished. Once you understand you don't need to read more however our habit is to finish reading anyway, which in itself is just unnecessary time, since you "understand'.
Alex
