I like to PhotoRead 30 books on a single topic over several weeks. The topics appear in my dreams, in my conversations, in metaphors that I use...it is quite fascinating.
I PhotoRead 23 books on Shakespeare once, because I never enjoyed Shakespeare. I the curled up with a play in front of the fireplace on the first night of a skiing vacation, and loved it. Simply loved it. PhotoReading the other books gave me a foundation of knowledge that made it much easier to read and enjoy Shakespeare.
...and that's just one example.
Your experience is limited by your imagination and your willingness to PhotoRead everything in sight.
