Abstract
This chapter outlines the steps for identifying a sample for a project. Sampling strategies are important for findings and specific strategies can help meet the purpose of a project. Human samples must be treated with care, and required training is expected from each person that engages in such research. This chapter reviews the importance of samples, the various types of samples, and strategies for recruiting and protecting subjects. Ethical issues related to subjects are addressed in this chapter, as well as the importance of inclusion and exclusion criteria and research protocols.