About A. Ka Tat Tsang A. Ka Tat Tsang is a professor in the Factor-Inwentash Faculty of Social Work at the University of Toronto. Books by A. Ka Tat Tsang Learning to Change The Strategies and Skills Learning and Development Approach by (author) A. Ka Tat Tsang Learning to Change Lives The Strategies and Skills Learning and Development Approach by (author) A. Ka Tat Tsang