This chapter helps the reader to understand what a needs assessment is and be acquainted with a framework within which to conduct a needs assessment. and to be familiar with the core concepts of a needs assessment. It helps the reader to be familiar with strategies that encompass a needs assessment. Needs assessments can be carried out by a wide cast of people. Social workers and public health workers, as well as city planners, can carry out needs assessments, as can government organizations. Local citizens or groups of people can also be responsible for carrying out a needs assessment. The chapter provides an overview of strategies to develop a needs assessment. When used in combination with a health behavior framework, a needs assessment can help one determine the needs of a community and attempt to build community support for this resource or policy change through media advocacy and coalition building.