The document discusses 12 different performance appraisal methods: Management by Objectives, Critical Incident Method, Behaviorally Anchored Rating Scales, Behavioral Observation Scales, 360 Degree Performance Appraisal, Checklist and Weighted Checklist Method, and Graphic Rating Scale Method. For each method, a brief definition is provided along with some of their key advantages and disadvantages. Free ebooks and resources related to performance appraisal are also listed.