These books are part of the reason that I stopped looking at politics in partisan terms. (The other reason is that I've worked to develop a more Socratic temperament where I try to look at the other side(s) of any argument.)
A partisan perspective is actually a severe handicap when it comes to examining politics, because partisanism creates a false dichotomy where we tend to ignore alternative or conflicting information. When we think that "This is my party/preffered media outlet and I agree with what they do and say," this mindset compels us to just scratch the surface of what is really going on.
If we want a real understanding of politics, we need to dig deeper, and that's where this list comes in. Here are the best 5 books to read for a deeper understanding of politics: