Content; Part I. Foundations of Political Psychology: 1. Political psychology: advancing an international perspective on the psychology of political behaviour; 2. The evolutionary basis of political ideology; 3. Genetic contributions to political phenomena; 4. The psychology and neuroscience of partisanship; 5. The personality basis of political preferences; 6. The structure, prevalence, and nature of mass belief systems; 7. The psychology of public opinion; 8. Rational choice and information processing; 9. Emotions and politics; 10. The developmental science of politics: insights from the 2016 US Presidential Election; Part II. The Politics of Intergroup Attitudes: 11. Authoritarianism: conceptualization, research, and new developments; 12. A political psychology of ethnocentrism; 13. Collective narcissism: how being narcissistic about your groups shapes politics, group processes and intergroup relations; 14. Demographic change, White decline, and the changing nature of racial politics in election campaigns; 15. Macro-diversity and intergroup attitudes; 16. The persistence of gender in campaigns and elections; 17. The politics of abortion, pregnancy, and motherhood; 18. Religiosity and openness to authoritarian governance; 19. The consequences of moral conviction in politics: more negative than positive? ; 20. The political psychology of national identity; 21. The political dynamics of immigration opinion worldwide; 22. International and individual differences in support for human rights; Part III. Contemporary Challenges to Democracy: 23. The political psychology of inequality: why rising rates of economic inequality affect our health and democracy; 24. How social class influences political choices; 25. Fear and loathing in American politics: a review of affective polarization; 26. Political extremism; 27. The politics of hate: derogatory language in politics and intergroup relations; 28. Populism; 29. A cultural theory of autocracy-vs-democracy: on the psychological foundations of political regimes; 30. Psychological theories meet the challenge of persuading and mobilizing voters; 31. Collective action for social change: individual, group and contextual factors shaping collective action and its outcomes; 32. Opinion formation and polarization in the news feed era: effects from digital, social, and mobile media; 33. Conspiracy theory belief and conspiratorial thinking; 34. Political psychology and the climate crisis; 35. The political psychology of cyber-terrorism; 36. Reconciliation in the aftermath of collective violence; Part IV. Diversifying Perspectives in Political Psychology: 37. Political psychology in the Global South: collective memory, intergroup relations, ideology, and political participation; 38. Political psychology in the Arab region: a commentary on navigating research in unstable contexts; 39. Critical perspectives in political psychology; 40. Rethinking group dynamics: the Cuban missile crisis revisited; 41. Two sides of the same coin: a new look at differences and similarities across political ideology; Index.