I am looking for information regarding the K-12 education industry in
the U.S., with an emphasis on art. The area that I would like to focus
on is non-public education sector such as franchise schools (KidsArt,
Abrakadoodle, and etc.) and after-school learning program operators.

The information could include:
-Sector characteristics/size
-Market overview
-Program, service model
-Major player
-Operations
-Market trend 
-Demographic trend
-Service trend

Any further information would be appreciated.