The Handbook of Positive Psychology in Intellectual and Developmental Disabilities provides a comprehensive examination of the application of positive psychology in the field of intellectual and developmental disabilities. It highlights the shift in the perception of disabilities and the move away from traditional deficit-oriented treatment approaches. The handbook presents evidence-based strategies aimed at promoting the strengths and abilities of individuals while also providing support and service offerings to enhance quality of life. The individual chapters address both medical and psychological aspects, including mindfulness, motivation, physical well-being, and self-regulation. Additionally, it discusses how assessment procedures can be utilized to evaluate interventions and client outcomes. The book offers professionals valuable insights into how positive psychology can help shift the focus towards the possibilities and potentials of individuals, leading to more effective care and treatment approaches.