A Guide to the Use of DC:0-5 Diagnostic Classification of Mental Health and Developmental Disorders of Infancy and Early Childhood in Diagnostic Assessment and Treatment Planning. The Casebook is a compilation of case studies as a companion volume to DC:0-5TM: Diagnostic Classification of Mental Health and Developmental Disorders of Infancy and Early Childhood (DC:0-5; ZERO TO THREE, 2016, 2021).

The DC:0–5 Casebook is designed to enhance understanding of not only clinical disorders but also the use and importance of the multiaxial framework in understanding the comprehensive diagnostic “story” of the child’s and family’s experience through a rich contextual frame. Each section of the casebook outlines the case and provides case conceptualization, diagnostic summary, discussion, and some questions for the reader to reflect on related to the case and clinical issues raised.

This innovative early childhood professional development program provides trainers with practical strategies to support early childhood professionals in creating environments and interactions that foster positive brain development.

Our newly designed virtual Training of Trainers combines live online events and self-study to support your journey towards becoming a ZERO TO THREE certified trainer of The Growing Brain curriculum.

Our virtual learning environment provides you with a variety of independent and small group learning experiences. You will engage in a guided self-study of the curriculum, have in-depth discussions about content with a ZERO TO THREE faculty, brainstorm with other adult educators about strategies for delivery, and create activities that meet the learning needs of the early childhood professionals you support!

September 10, 2026; 1 PM- 2:45PM ET

Introducing LEARN Intensives, a new live virtual event series from ZERO TO THREE. Inspired by the innovation and thought leadership of the LEARN Conference, these interactive deep-dive sessions bring timely topics, emerging research, and leading experts directly to you. 

Strong, responsive relationships are the foundation of positive behavior. In this interactive session, participants explore practical, connection-centered strategies that reduce challenging behaviors and strengthen regulation in young children. Through examples and guided reflection, participants will learn how to create predictable, supportive routines and apply proactive approaches that help every child feel connected, capable, and ready to thrive.

Presenter:  Erin Donahue, Director, SWIFT Support at KenCrest Services   

RIOS™ Guide for Reflective Supervision and Consultation is a must-have resource for leaders strengthening reflective supervision and consultation in infant and early childhood settings. Grounded in the Reflective Interaction Observation Scale (RIOS), it provides a clear, research-informed framework to deepen supervisory practice and strengthen professional relationships. The included Reflection Self-Check tool supports ongoing growth, helping programs build stronger teams and improve outcomes for young children and families.

This innovative early childhood professional development program provides trainers with practical strategies to support early childhood professionals in creating environments and interactions that foster positive brain development.

Our newly designed virtual Training of Trainers combines live online events and self-study to support your journey towards becoming a ZERO TO THREE certified trainer of The Growing Brain curriculum.

Our virtual learning environment provides you with a variety of independent and small group learning experiences. You will engage in a guided self-study of the curriculum, have in-depth discussions about content with a ZERO TO THREE faculty, brainstorm with other adult educators about strategies for delivery, and create activities that meet the learning needs of the early childhood professionals you support!

Deepen your understanding of the DC:0–5™ Diagnostic Classification of Mental Health and Developmental Disorders of Infancy and Early Childhood with a comprehensive review of the indispensable guide, straight from the source. 

The DC:0-5 Diagnostic Classification Manual is required for the training. You can find the Manual in the "Recommended Products" below. If purchasing the Print Edition during checkout please allow 1 - 2 weeks to receive your manual if you select standard shipping. 

The Micro-Course Textbook for Area 2 Supporting Cognitive Development deepens your understanding of how infants and toddlers learn and shows you how to support their development through everyday interactions, guided reflection and real-world application.

Biting is one of the most common and most upsetting toddler behaviors. Understand how to respond to the child who bit and the child who was bitten. Importantly, learn how to prevent biting in the future.

A foundational bestseller in infant and early childhood mental health, Don’t Hit My Mommy! is a trusted and practical resource for professionals. It offers clear, trauma-informed guidance for addressing behavioral and mental health challenges in young children exposed to violence within their closest relationships. Grounded in clinical expertise and real-world experience, the book provides actionable strategies for intervention and healing, making it an essential tool for practitioners across disciplines.

Holdin Pott is a heartfelt story about managing big feelings, perfect for helping children and caregivers explore emotions together. Through the relatable tale of a pressure cooker and a little pot, the book gently opens the door to conversations about emotional regulation, generational patterns, and how to hold space for difficult experiences—all while strengthening the caregiver-child bond.

The ZERO TO THREE Critical Competencies for Infant-Toddler Educators™ Online Micro-Course, Area 3: Supporting Language and Literacy Development helps faculty and students strengthen practices that support infants’ and toddlers’ communication, language, and early literacy development. The course emphasizes reflective learning and everyday interactions that promote meaningful language experiences.