In college writin g education , academic e ssays a re t he r esult of a combination of the writing skills that a student has developed in classes in a semester. For effective academic essay writing, it is important to develop the writing format skills as well as to discover proper essay topics suitable for the type or style of the essay. In this paper, I have identified the types of academic essays covered in an academic writing class at S University and the need to select appropriate topics for each essay through examining actual cases. This research will provide an empirical insight into the impact of topic selection on writing effective academic essays. Furthermore, it is expected that the outcome of this paper will be used to reaffirm the importance of selecting topics in classes for academic essay writing, while conducting a foundation study on the contents and methods of classes to select appropriate topics.