This thoroughly-revised HBSE text is based upon social systems theory and incorporates the new Curriculum Policy Statements of the Council on Social Work Education (CSWE). It is based upon a generalist practice foundation, and includes practice examples that help students to understand the underlying theory. The text examines basic concepts in each of the various system sizes: the social group, the family, the organization, and the community. It includes expanded coverage of diversity, values and ethics, social and economic justice/oppression, populations-at-risk, and other areas outlined in the Statements. An Instructor's Manual/Test Bank and computerized test bank provide instructors with invaluable assistance in teaching the course.