This course covers the concept of psychological counseling and the concept of theory in the field of psychological counseling, highlighting the importance of having a theory in counseling. It also discusses the characteristics of a good theory and reviews the main theories used in psychological and educational counseling. The course includes a comparison of these theories, focusing on areas of similarity and difference. Additionally, it introduces the technical methods used in each theory, provides practical applications of the theories, and discusses the advantages and disadvantages of each theory, along with its suitability for the educational field.