This guide provides resources that support early childhood professionals to integrate the Pyramid Model for Promoting Social and Emotional Competence in Infants and Young Children and trauma-informed care. The intended audience includes program leaders and administrators, educators, other professionals (e.g., mental health, social work, behavior specialists), and staff in early intervention and early childhood classrooms. The purpose of this guide is to help early childhood professionals understand how the Pyramid Model and trauma-informed care can meet the diverse needs of young children and their families who have experienced trauma.