Your experiencing activation of the books. Since it means that the information is being processed by your inner mind you are noticing something positive happening. If you want to have a little less intensity from your photoreading sessions allow some more time between photoreading and sleep. Listen to some music that you enjoy. Listen to a paraliminal for some goal you want to achieve, my choice prosperity, perfect health, (avoid memory supercharger, personal genius immediately following a photoreading session if you want to downplay the active dreams and use those tapes if you do want active dream sessions.) Do something that creates a clear cut off point between your photoreading session and sleep. Do something different before going to bed if you just photoread the text.
If you happen to find yourself dreaming about the book then go with the flow. It is actually benefical to rapid learning. Let go of the anxiety and enjoy it. From what you say it is happening at the point just before you drift off to a sound sleep. In which case you want a technique to quieten the mind. Use the deep relaxation paraliminal if you have it otherwise count sheep. Count backward from 100 to 1 it bores the mind to sleep and it will probably still try to turn it's attention toward the activation you will need to return to counting, however that is the fastest method of getting to sleep.
Ideally if you want a quieter night avoid photoreading in the 2 hours before you go to bed. You'll can still get activation dreams but they are more likely to occure in the dream state rather than just the point before you drift off to sleep.
Alex
