Book excerpt: Mexican-Americans now constitute two thirds of what has become the largest and fastest-growing minority group in the United States, Hispanics. They have distinct cultural patterns and values that those who seek to serve them competently as clinicians and educators, and those who attempt to study them, need to understand. This is the first comprehensive overview of the psychology of the Chicana/o experience since 1984. Solidly grounded in the latest theory and research, much of which is relevant to other Latina/o groups as well, The Handbook of Chicana/o Psychology and Mental Health is an indispensable source of up-to-date information and guidance for mental health and education professionals, their trainees and students; and for social and behavioral scientists interested in the impact of cultural differences in multicultural settings.