Who advised artists in his treatise on painting that paintings should look like illusionary windows?

Why do you think it took four different people to create a japanese woodcut? why didn't one person do all the work like most artists of today?

So my science teacher said anything that makes noise can in a way make music, instruments make music, and mayonnaise makes sound. so i have a question, do not report. is mayonnaise a instrument?

What do you think will be the lasting impact that reality tv has on the humanities and how we see ourselves as humans? based on what you learned about the theater (which was not always considered high art) in this week's readings, what may be some future similarities and differences between reality tv and the theater?