Definition of key terms and concepts in exceptional children, categories of exceptional children: gifted and talented, children with learning disabilities, visual impaired, hearing impaired, physically challenged, mentally challenged, aggressive children, withdrawn children, emotionally disturbed children, children living under difficult circumstances—street children, refugee children, slum children, children of prisoners, abused and neglected children, child laborers, children affected by HIV and AIDS, children in rehabilitation homes; factors contributing to exceptional children; assessment of exceptional children; interventional strategies for exceptional children; institutions and interventional programs for exceptional children, current trends and immerging issues with regard to exceptional children; advocacy for the rights of exceptional children.