Maria Seymour St. John, PhD, MFT, is Assistant Clinical Professor in the Department of Psychiatry at the University of California, San Francisco and Director of Training of the Infant-Parent Program at San Francisco General Hospital. Endorsed by the California Center for Infant-Family and Early Childhood Mental Health as an Infant-Family and Early childhood Mental Health Mentor, Dr. St. John has published on subjects related to race, class, gender and sexuality in infant mental health work in numerous books and journals including Zero to Three, Feminist Studies, Studies in Gender and Sexuality, Attachment and Sexuality, and the World Association of Infant Mental Health Handbook of Infant Mental Health. Her writing examines infant mental health discourse and practice from the perspectives of psychoanalytic, feminist, queer, and postcolonial theories. She has developed the Parent-Child Relationship Competencies, a framework for relationship-focused clinical assessment and treatment planning, and is also an author of the California Training Guidelines and Personnel Competencies for Infant-Family and Early Childhood Mental Health, which sets the standards and roadmap for competency development in the field of infant mental health. Dr. St. John has been active in the collaborative process that gave rise to the Diversity-Informed Infant Mental Health Tenets (© Irving Harris Foundation) and works with groups and individuals to facilitate integration and implementation of the Tenets across diverse spheres of practice.