Deletion of Power of 7

Comment: per G11 - appears to be promoting the upcoming book(s).  Without prejudice as to the likelihood of these books ever being published.  Very much effort put into this unsourced article about something that does not yet exist for someone who does not have a |conflict of interest.  Also '''Salt''' as this has been speedied before
Stance: delete
Cited policy: Wikipedia:Conflict of interest (WP:COI)