Performance appraisal is a process of evaluation an employee’s performance of a job in terms of its requirements. According to Hegel, 'it is the process of evaluating the performance and qualification of the job for which he is employed, for purpose of administration including placement, selection for promotions, providing financial reward other actions which require differential treatment among the members of a group as distinguished from actions affecting all members equally.'' Performance appraisal is also called performance review, performance evaluation, performance assessment, performance measurement, employee’s evaluation, staff assessment, services rating, etc. Performance appraisal is an assessment of an employee in performing his job. Performance appraisal provides an opportunity to communicate to employees the mission, strategy, vision, values and objectives of the libraries.