Virtually every previous review has concluded that structuring the selection interview improves its psychometric properties. This paper reviews the research literature in order to describe and evaluate the many ways interviews can be structured. Fifteen components of structure are identified that may enhance either the content of the interview or the evaluation process in the interview. Each component is explained in terms of its various operationalizations in the literature. Then, each component is critiqued in terms of its impact on numerous forms of reliability, validity, and user reactions. Finally, recommendations for research and practice are presented. It is concluded that interviews can be easily enhanced by using some of the many possible components of structure, and the improvement of this popular selection procedure should be a high priority for future research and practice.