Child-Parent Relationship Therapy (CPRT) by Gary Landreth focuses on improving the bond between parents and their children through play therapy techniques. The approach emphasizes the importance of play as a natural form of communication for children. CPRT helps parents learn to engage with their children in a supportive, nurturing way, enhancing emotional connection and improving behavioural issues. The goal is to foster a safe environment where children can express themselves freely, leading to healthier relationships and emotional development.