This set of Notes was originally part of a textbook chapter looking at the impact on audiences of different types of old and new media, something I mention by way of explanation for both the general focus and lack of depth in the Notes.
Without wishing to bore you with the intimate details of dealing with publishers and exam boards, there’s always a certain tension between the amount of depth and detail demanded by the latter and the number of print pages a publisher is willing to support – and while each has their reasons it’s akin, for an author, to steering an unhappy course between Cilia and Charybdis.
The point of this little preamble is that textbook chapters are always a compromise between cramming in as much information as possible about a topic and the level of detail with which that topic can be treated. In other words, while these Notes mention quite a few ideas none are developed in any great depth.
What they should give you, however, is a series of signposts to some of the most significant ideas in this area that, should you see the need, can be pursued and developed with additional Notes of your own. In this respect the Notes cover things like: