Pop Art and Commercialism

For this reading reflection you will need “what are you looking at” Will Gompertz textbook. I have attached a file of instructions for the essay and the first essay file that wasn’t written properly. On the first essay a lot of this does not make sense. For example, in the first paragraph suddenly switch from a discussion of pop art to conceptual art, as though they were the same. Then the previous writer give examples of “the styles” (which? pop? conceptualism?) examples that range from ancient to modern to postmodern, confusing everything.  Some of the points on pop art are correct and did not reference the textbook. (they seem derivative and are once again not cited properly). 
 Didn’t say almost nothing about Modernism, need to start over for the essay.