Oppositional defiant disorder (ODD) is defined as an ongoing pattern of uncooperative, defiant, and hostile behaviour toward authority figures. Based on the evidenced-based approach of Positive Behaviour Support (PBS), Behaviour Zen and ODD aims to educate, empower and enable people supporting individuals with Oppositional Defiant Disorder (ODD). This user-friendly resource will equip you with the knowledge, skills and practical strategies to address challenging behaviours at all levels of severity and facilitate positive changes. Use the comprehensive checklists and tools provided to develop positive behaviour support plans that can be used to support the individual with ODD consistently in all settings. This invaluable resource is useful for parents, early childhood educators, teachers, support staff, and mental health, allied health and supervisory professionals who support individuals with ODD.