Critical media studies, ott and mack book

it should answer few question which i will post now depends on the Ott and mack book and the file i will attach now.

here is the link for the book ( Only read chapter 1, 2 ):

and the questions are:

What is the main goal of each of the readings? Please define a few (2) cool mid-level concepts from each chapter that helped you make sense of the authors argument. How can these readings help us understand the Why to study media?”

if you need any question please hit me with it am here.