You're on your way! Consider looking up Stanford Professor Tina Seelig, she's the only researcher I know of that remotely talks about this. Check out some of her talks and blog posts.
http://www.amazon.com/Tina-Seelig/e/B00MAPL7P0
...and has a blog:
http://creativityrulz.blogspot.com/
...and here are some video lectures:
http://ecorner.stanford.edu/search;jsessionid=833B2D89C66AC2...
...any recommendations on the books?