Adrienne Nishina is Professor and Chair of the Department of Human Ecology at the University of California, Davis, USA. Her work on peer relationships and diversity (funded by the National Science Foundation and the Institute of Education Sciences) identifies conditions under which social interactions promote well-being. She recently won a mentoring award for her support of emerging scholars. Sarah E. Gaither is the Nicholas J. and Theresa M. Leonardy Associate Professor of Psychology and Neuroscience at Duke University, USA. Her research is funded by foundations including the National Science Foundation, Russell Sage, and Spencer. An APS Rising Star and SPSP Sage Young Scholar, she has received media attention from the New York Times, the BBC, and NPR. Lisa Kiang is Professor of Psychology at Wake Forest University, USA, specializing in identity development and cultural contexts. Actively involved in the Society for Research on Adolescence and the Society for Research on Child Development, she has authored numerous publications and edited volumes, earning national research grants and awards. Her work bridges scholarship, diversity, and community engagement.

• 1. Introduction: centering attention on multiracial youth and families; Part I. Research Approaches and Methodologies: 2. Conceptualizing and measuring multiracial identity in research; 3. What do we 'know?': a critical examination of psychological research practices with multiracial samples in the united states; 4. Qualitative approaches to multiracial research; 5. Methodological and statistical considerations for advancing the study of multiracial face categorization; 6. Best practices and future directions in multiracial research; Part II. Individual Experiences: 7. Mental health among multiracial children and adolescents: a scoping review across developmental periods; 8. In between and becoming: monoracism, mental health, and resilience among multiracial American emerging aadults;9. Multiracial Identity Integration (MII): processes and outcomes involved in the management of different racial identities; 10. Beyond monoracial boundaries: considering latine identity through a multiracial lens; Part III. Family Contexts: 11. Theoretical frameworks and new directions for the study of multiracial family socialization; 12. Novel approaches to advance the study of ethnic–racial socialization and identity in multiracial families; 13. 'Talking the talk and walking the walk': racial socialization in multiracial black-white families; 14. Toward a more expansive conceptualization of multiracial families: highlighting queer-parent multiracial families and multiracial stepfamilies; Part IV. Social Relationships: 15. The racial (mis)categorization of multiracial youth; 16. Schools, peer groups, and friendships: contexts of multiracial identity development; 17. Interracial couples in context: how historical, social, and cultural factors influence perceptions of interracial relationships; Part V. Social Policy and Other Applied Contexts: 18. Discrimination in the twenty-first century: how can civil rights policies best embrace the growing mixed-race population?; 19. From individuals to populations: structural determinants of health in the US multiracial population; 20. Multiracial cultural attunement: reimagining anti-mono/racist therapeutic practice with multiracial people and families; 21. Inclusive policies for multiracial and multicultural youth in government, community, and educational contexts in the US and Canada; Part VI. What We Can Learn from Other Perspectives: 22. Borrowing from biculturalism: an ecological–developmental perspective on multicultural and multiracial identity integration; 23. Multiracialism around the globe: sociocultural approaches to understanding multiracial experiences around the world; 24. Being borderless and brazen: multiraciality and multiracial families in Europe; Part VII. Concluding Chapter: 25. Conclusion: multiracial youth and families: synthesis and unanswered questions.

Adrienne Nishina is Professor and Chair of the Department of Human Ecology at the University of California, Davis, USA. Her work on peer relationships and diversity (funded by the National Science Foundation and the Institute of Education Sciences) identifies conditions under which social interactions promote well-being. She recently won a mentoring award for her support of emerging scholars. Sarah E. Gaither is the Nicholas J. and Theresa M. Leonardy Associate Professor of Psychology and Neuroscience at Duke University, USA. Her research is funded by foundations including the National Science Foundation, Russell Sage, and Spencer. An APS Rising Star and SPSP Sage Young Scholar, she has received media attention from the New York Times, the BBC, and NPR. Lisa Kiang is Professor of Psychology at Wake Forest University, USA, specializing in identity development and cultural contexts. Actively involved in the Society for Research on Adolescence and the Society for Research on Child Development, she has authored numerous publications and edited volumes, earning national research grants and awards. Her work bridges scholarship, diversity, and community engagement.

• 1. Introduction: centering attention on multiracial youth and families; Part I. Research Approaches and Methodologies: 2. Conceptualizing and measuring multiracial identity in research; 3. What do we 'know?': a critical examination of psychological research practices with multiracial samples in the united states; 4. Qualitative approaches to multiracial research; 5. Methodological and statistical considerations for advancing the study of multiracial face categorization; 6. Best practices and future directions in multiracial research; Part II. Individual Experiences: 7. Mental health among multiracial children and adolescents: a scoping review across developmental periods; 8. In between and becoming: monoracism, mental health, and resilience among multiracial American emerging aadults;9. Multiracial Identity Integration (MII): processes and outcomes involved in the management of different racial identities; 10. Beyond monoracial boundaries: considering latine identity through a multiracial lens; Part III. Family Contexts: 11. Theoretical frameworks and new directions for the study of multiracial family socialization; 12. Novel approaches to advance the study of ethnic–racial socialization and identity in multiracial families; 13. 'Talking the talk and walking the walk': racial socialization in multiracial black-white families; 14. Toward a more expansive conceptualization of multiracial families: highlighting queer-parent multiracial families and multiracial stepfamilies; Part IV. Social Relationships: 15. The racial (mis)categorization of multiracial youth; 16. Schools, peer groups, and friendships: contexts of multiracial identity development; 17. Interracial couples in context: how historical, social, and cultural factors influence perceptions of interracial relationships; Part V. Social Policy and Other Applied Contexts: 18. Discrimination in the twenty-first century: how can civil rights policies best embrace the growing mixed-race population?; 19. From individuals to populations: structural determinants of health in the US multiracial population; 20. Multiracial cultural attunement: reimagining anti-mono/racist therapeutic practice with multiracial people and families; 21. Inclusive policies for multiracial and multicultural youth in government, community, and educational contexts in the US and Canada; Part VI. What We Can Learn from Other Perspectives: 22. Borrowing from biculturalism: an ecological–developmental perspective on multicultural and multiracial identity integration; 23. Multiracialism around the globe: sociocultural approaches to understanding multiracial experiences around the world; 24. Being borderless and brazen: multiraciality and multiracial families in Europe; Part VII. Concluding Chapter: 25. Conclusion: multiracial youth and families: synthesis and unanswered questions.

Adrienne Nishina is Professor and Chair of the Department of Human Ecology at the University of California, Davis, USA. Her work on peer relationships and diversity (funded by the National Science Foundation and the Institute of Education Sciences) identifies conditions under which social interactions promote well-being. She recently won a mentoring award for her support of emerging scholars. Sarah E. Gaither is the Nicholas J. and Theresa M. Leonardy Associate Professor of Psychology and Neuroscience at Duke University, USA. Her research is funded by foundations including the National Science Foundation, Russell Sage, and Spencer. An APS Rising Star and SPSP Sage Young Scholar, she has received media attention from the New York Times, the BBC, and NPR. Lisa Kiang is Professor of Psychology at Wake Forest University, USA, specializing in identity development and cultural contexts. Actively involved in the Society for Research on Adolescence and the Society for Research on Child Development, she has authored numerous publications and edited volumes, earning national research grants and awards. Her work bridges scholarship, diversity, and community engagement.

• 1. Introduction: centering attention on multiracial youth and families; Part I. Research Approaches and Methodologies: 2. Conceptualizing and measuring multiracial identity in research; 3. What do we 'know?': a critical examination of psychological research practices with multiracial samples in the united states; 4. Qualitative approaches to multiracial research; 5. Methodological and statistical considerations for advancing the study of multiracial face categorization; 6. Best practices and future directions in multiracial research; Part II. Individual Experiences: 7. Mental health among multiracial children and adolescents: a scoping review across developmental periods; 8. In between and becoming: monoracism, mental health, and resilience among multiracial American emerging aadults;9. Multiracial Identity Integration (MII): processes and outcomes involved in the management of different racial identities; 10. Beyond monoracial boundaries: considering latine identity through a multiracial lens; Part III. Family Contexts: 11. Theoretical frameworks and new directions for the study of multiracial family socialization; 12. Novel approaches to advance the study of ethnic–racial socialization and identity in multiracial families; 13. 'Talking the talk and walking the walk': racial socialization in multiracial black-white families; 14. Toward a more expansive conceptualization of multiracial families: highlighting queer-parent multiracial families and multiracial stepfamilies; Part IV. Social Relationships: 15. The racial (mis)categorization of multiracial youth; 16. Schools, peer groups, and friendships: contexts of multiracial identity development; 17. Interracial couples in context: how historical, social, and cultural factors influence perceptions of interracial relationships; Part V. Social Policy and Other Applied Contexts: 18. Discrimination in the twenty-first century: how can civil rights policies best embrace the growing mixed-race population?; 19. From individuals to populations: structural determinants of health in the US multiracial population; 20. Multiracial cultural attunement: reimagining anti-mono/racist therapeutic practice with multiracial people and families; 21. Inclusive policies for multiracial and multicultural youth in government, community, and educational contexts in the US and Canada; Part VI. What We Can Learn from Other Perspectives: 22. Borrowing from biculturalism: an ecological–developmental perspective on multicultural and multiracial identity integration; 23. Multiracialism around the globe: sociocultural approaches to understanding multiracial experiences around the world; 24. Being borderless and brazen: multiraciality and multiracial families in Europe; Part VII. Concluding Chapter: 25. Conclusion: multiracial youth and families: synthesis and unanswered questions.