Posting In my subjective opinion, it's about 10% to 20% less than the original price. A set of 6 specialized books required for obtaining a social worker qualification. - Title: Social Worker Books - 6 Book Bundle - Volumes: 6 books - Contents: Sociology and Social Systems, Principles and Policies of Social Welfare, Support for Poverty, Fundamentals of Social Work and the Professional, Criminal Justice and Welfare, Organization and Management of Welfare Services Thank you for viewing.