Human resources include the knowledge, motivation and skills of all employees in a company. Human resource management refers to external factors to which, for example, the economic system belongs, and to internal factors to which it refers to management. A leadership function that ensures positive behavior is also important, and managers have a great responsibility when leading and managing employees. In addition to leadership, the importance of motivation should be emphasized because motivated employees are the ones who do the job best. What should not be forgotten is control which if it does not work leads the company to ruin. Methods for evaluating employees relate to the evaluation of characteristics as well as the manner of behavior of employees when performing work. According to some methods, employees are valued according to their characteristics from the worst to the best and can be conducted in smaller or larger groups. Appraisers are the ones who conduct the appraisal process and strive to ensure that each person is evaluated in a fair way. In addition to all the advantages of these methods, numerous disadvantages are possible. Mistakes can be made by the evaluator, and they can be based on his subjective opinion and, for example, prejudices, and he can evaluate a certain employee too mildly or too harshly. In order to avoid mistakes during the evaluation, various measures are implemented and managers are additionally trained.