The aim of this study is to evaluate the influence of bibliotherapy education on the social-emotional skills of psychological counselling and guidance candidates. The test group of the study consisted of psychological counselling and guidance students who participated voluntarily in the course named “Applied Counselling and Bibliotherapy”. A pre-test and post-test experimental design without a control group was used in the study. The Social Skills Inventory was used, for determining the social skills level of students before and after they are provided with bibliotherapy education. It was concluded from the study that there is a significant difference in the general scores for the social skills of female students after bibliotherapy education and the scores they obtained in the sub-dimensions of social expressivity. With the given reading materials and method of delivery, when the effect of bibliotherapy education on social skills level was compared, it was found in the final test that female students’ scores in the sub-dimensions of emotional expressivity and social control were significantly higher than those of male students. However, it was concluded that male students’ scores in the sub-dimension of emotional control were higher than those of female students.