The aim of this study is to reveal the subject trends of university students according to species. This is a qualitative study based on document review. The data of the study was obtained from 67 volunteering in-service Turkish teachers' worksheets. The worksheets were classified according to text types. Text types were determined based on the opinions of three experts in the field. Text types were classified in the following order: 1. Story, 2. poem, 3. memoir, 4. biography, 5. travel and 6. essay. The study group comprised of 67 volunteering third grade pre-service teachers studying at Turkish Education. The teacher candidate was used to mean a student who is studying at the faculty of education. Students were coded 1F (female student in the first place), 2M (male student in the second place). Students wrote essay every two weeks for a period of 12 weeks. Students were given an average of forty minutes for each text type. Each student was coded and subjects written were classified based on main themes. Three copies of subjects were made and given to three scholars. The papers were evaluated in terms of subjects and subjects were evaluated in terms of frequency. Next, content analysis was performed for codes and themes. As a result, it was discovered that pre-service teachers chose to change subject based on the type of texts and it was shown that it was effective in the variation of subjects.