This document provides an overview of 360-degree performance appraisals. It discusses the historical origins and development of 360-degree feedback, the concept and process, potential appraisers including superiors, self, peers, subordinates and customers. It outlines the contributions and cautions of each appraiser type. It also discusses factors for effective 360-degree feedback programs and common problems, concluding that when implemented properly it can lead to improved performance and motivation.