Introduction: Why Do Early Childhood Education Professionals Need Relationship-Based Professional Development? 1. Growing Our Own Early Childhood Education Teachers and Leaders 2. Applying Interprofessional Competencies for Early Childhood Education Professionals 3. Facilitating Learning and Inquiry in Early Childhood Education Professional Communities 4. Navigating Systems for Equitable, Inclusive and Socially Just Early Childhood Education Programs 5. Sustaining Bi-Cultural Leadership in Early Childhood Education