A child psychologist is a professional who specializes in understanding the mental, emotional, and behavioral development of children. They assess and treat various issues such as anxiety, depression, and learning difficulties. By using play therapy, talk therapy, and other techniques, they help children express their feelings and cope with challenges. These psychologists often work with parents, teachers, and other caregivers to create supportive environments for children. They may also conduct research to improve methods of treatment and understanding of child development. Their goal is to promote healthy emotional and psychological growth in children.