David,
Greetings!
Check out past posts for more info on Syntopic Reading. Or, just read Chapter 11 in the PhotoReading book. Ideally, PhotoRead all of your books for your Syntopic Read the day prior to activation. Wait 10-20 minutes after completing the first 4 steps of the PhotoReading Whole Mind System to activate a book. If you are only PhotoReading books without activation (steps 1, 2, & 3), you can go on to the next book without delay.
Enjoy!
Patrick