In the last RW class, we dealt several possible sources for essay, such as Free Range Studios.

As I searched for such visual sources which can be used in my essay about museum, I found the short video,The history of museums in Ted-Ed. 
I'm thinkng about comparing Japanese museums and another country's, possibly Western country's, especially from the aspects of  entrance fee and museums managed by corporations. 
So I'd like to correct sources of general background from such visual information, and more detailed information from documents or books.