An important part of learning about institutions is that they tend to align with political parties. This can be for a number of reasons, but is mostly to please the dominant ideologies of their audience.
This is clear to see in this first image:
It is clear by looking at this that The Guardian is predominately read by a labour supporting audience (centre-left), whilst The Telegraph, in contrast, leans very much to the centre-right, supporting the Conservatives (Or Tories). Other observations; over a quarter of Daily Express readers support UKIP (quite obvious if you just look at the front page), along with The Star and there is not a single newspaper that has anything near a 50/50 labour/conservative split.
The history of such allegiances can be seen in the diagram below, with support shown in every general election from World War 2 until 2005, note how support from institutions – like audiences – tends to change to reflect the zeitgeist and ideologies of the era:
Only The Mirror and The Telegraph‘s support has remained consistent since the end of World War 2.
What other observations can be made, based on these two diagrams? Answers in the comments please.