The document discusses four normative theories of the press:
1) Authoritarian theory views media as controlled by authorities to strengthen the government through censorship and licensing.
2) Libertarian theory sees people as rational and able to judge information freely without restrictions.
3) Social responsibility theory supports private ownership but with self-regulation and ethical standards to benefit society.
4) Soviet communist theory treats media as owned by the state to spread propaganda and ideology in support of communist rule.