Very Short Introductions
People also need to know what level you're at now to say precisely.
I read the observer and the times, the FT and the economist. I'm doing A levels and and well versed in history and economics, I've been interested in politics for two years now, watching the news regularly and competing in a debating team.
I'm putting together a reading list, to help expand my outlook and knowledge in areas such as politics, philosophy and economics, so can you recommend me three books to read please?
I would try, insofar as it's possible, to resist entering into and pursuing a particular orientation, methodology or whatever; try and read as widely as possible.
Two good introductions to contemporary analytic political philosophy, are: Kymlicka's Contemporary Political Philosophy, and Wolff's An Introduction to Political Philosophy. Within the analytic canon, I would also recommend John Rawls' lectures on moral and political philosophy, though these are more substantive than the two aforementioned, explicitly introductory books.
In terms of continental philosophy, I would recommend - if only for clarity of writing, although the works are brilliant in their own right - the work of Raymond Geuss (probably Philosophy and Real Politics), Sartre's Existentialism and Humanism (though if you don't want to buy the book, this lecture might suffice as a substitute), and some - though I don't know which - introductory work on Foucault.
I would also caution against being absorbed into orthodox (neoclassical) economics, and believing that this way of understanding economic relations is the only, true or best way of doing so; by way of antidote, read some political economy and, specifically, some Marx.