With all respect, but you call 7 pages a book? How many of them are actual content?
Doesn't matter if a book has 7 or 70 pages. If it has valuable information then people will read and apply it. You don't have to buy anything, it's anyone's decision if they want to buy my content or not. At the end of the day, I will still live.
My "Making Money with Flippa and C2" has 10 pages of relevant content, Sold over 70 copies on the Scirra store and I've received "Thank You" emails and PMs from people successfully doing the same thing I'm doing on Flippa.
My other book "Making Android Games within 1 hour" is 40+ pages only for the simple fact that has lots of photos explaining the process step by step. That book has sold over 60 copies.
Not to mention, I priced each one of these pieces of content dirt cheap.. I probably could sell it for more because of the simple fact that it shows how to make apps and how to monetize. Also, if someone doesn't understand the content that I wrote. They can always contact me for assistance.
I'm sorry, when I'm writing content... I cut to the chase and don't feel like bullshitting on 70 pages of time wasting reads.