This theme issue contains six articles on the development of infants and toddlers: (1) "Cross-Cultural Studies of Child Development: Implications for Clinicians" (J. Kevin Nugent); (2) "Therapeutic Work with African-American Families: Using Knowledge of the Culture" (Cheryl Polk); (3) "Psychotherapy in Specific Cultural Contexts: Resources for the Infant Mental Health Clinician" (Cheryl Polk); (4) "The Critical Importance of Cultural and Linguistic Continuity for Infants and Toddlers" (Hedy Nai-Lin Chang and Dora Pulido); (5) "Professionalization as Culture Change: Issues for Infant/Family Community Workers and Their Supervisors" (Blanca E. Almonte); and (6) "Studying the Social and Emotional Development of Hispanic Children in the United States: Addressing Research Challenges" (Maria P. Fracasso). Each article includes a reference list. The journal also includes reviews of six books and ten videotapes on cultural awareness, diversity, and multicultural issues related to child development, child care, and social programs. (MDM)