It is divided into eight books and was a cornerstone in political philosophy for centuries despite certain features - including attitudes towards slaves and women - clearly placing its conclusions and advice within the confines of Athenian society of the fourth century BCE. Aristotle’s fundamental view is that the individual needs the city more than the city needs the individual, not least because a well-ordered city-state offers obvious benefits beyond simply self-protection and commerce. It makes possible a broader life, allowing in addition education and leisure, leading its citizens towards a life of virtue.
In book two, Aristotle considers the best regime for the city, looking at the three main forms of his time - democracy, oligarchy/aristocracy and monarchy. He considers the qualification to be a citizen and participate in the political process - offering a wider view than Plato, for example.
Revolution, change, constitutional developments, insurrections - these issues of instability are discussed with references to specific examples. And in later books he proposes the conditions for the best state, the ideal state, ‘for a state is not a community of living beings only, but a community of equals, aiming at the best life possible’.