Ursula K. Le Guin
The story of The Dispossessed happens on twin planets called Urras and Anarres. Urras was richer than Anarres. But Anarres is more advanced ethically and morally. Sttlers from Urras planned the Anarres society. It is an anarcho-socialist society that is an "ambiguous utopia". Anarres society is neither perfect nor static, unlike classical utopias. The main character, Shevek, travels to Urras to do research. Urras society is authoritarian, hierarchical, and misogynistic. But these the anarchists on Anarres do not have those problems. In their society cooperation and individual liberty are most important.