"Therapeutics is a practice-oriented resource designed for professionals, educators, and caregivers working with persons with intellectual disabilities (PwID). Adopting a multidisciplinary approach, the book integrates principles from education, rehabilitation, and clinical therapies to promote holistic development and enhance quality of life. Organized into five chapters, it addresses key domains of therapeutic support in a systematic manner. The opening chapter focuses on language, speech, and communication, outlining developmental pathways, critical periods, and their importance in classroom contexts. It discusses modes of communication, common speech and language disorders in PwID, and evidence-based strategies for fostering communication skills within educational settings. Subsequent chapters examine the role of physiotherapy in managing conditions commonly associated with intellectual disability, such as cerebral palsy, spina bifida, and muscular dystrophy, with emphasis on motor development, functional mobility, and classroom-based integration of physiotherapeutic practices. The book also highlights occupational therapy interventions, detailing techniques to enhance daily living skills, hand function, sensory integration, and eye–hand coordination. Embedding these approaches into routine classroom activities, educators can improve academic engagement and social participation. A dedicated chapter on behaviour modification addresses the identification and management of adaptive and maladaptive behaviours, presenting practical strategies such as reinforcement, behaviour analysis, and classroom interventions to encourage positive behavioural change. Another section focuses on assistive devices, offering guidance on their selection, use, and maintenance, while also explaining government initiatives such as the ADIP scheme and relevant SC/ST schemes that improve access to assistive technologies. Overall, the book emphasizes collaboration and coordinated intervention, underscoring the importance of multidisciplinary teamwork in fostering inclusion, independence, and well-being among PwID."