This document provides an overview of performance appraisal concepts and methods. It discusses why appraisals are important for setting goals, recognizing performance, guiding progress, and more. Both past-oriented and future-oriented appraisal methods are covered, including rating scales, critical incident reports, essays, checklists, forced choice, rankings, management by objectives, 360-degree feedback, and behavioral anchored rating scales. The document aims to explain different performance appraisal techniques that can be used to evaluate an employee's personality, performance, and potential.