okay, sorry. Its is pretty hard, kind of like the dictionary game for some.
Prepare and photoread like you would normally. Activate normally. Maybe come up with your own type of activation that you think would work better AS you are doing it.
I personally, with long books like encyclopedias, use page clumps to photoread and do that about 5 times then regular photoread. When you are doing that you are saying to yourself "OMG, this is too much, I hope I can handle it", so you doubt yourself and you cant.
I hope this helps, I really have never tried to photo an encyclopedia
