This literature review will illustrate how writing could improve students' comprehension. Writing is one of the most important skills that students need to master for college level work. Therefore, students should be prepared with these skills before moving to the college level because they are required to write numerous papers that tend to be used for learning assessment. Writing not only helps professors to assess students, but it also helps students to enhance their reading comprehension; this is because students' writing is formed based on what they have read. Therefore, this means that reading comprehension is a critical skill for college level success. Reading comprehension is a complex process. In order to understand a text, the reader needs to recognize its words and access their meaning, the reader needs to activate related knowledge must be activated, and the reader needs to generate inferences as information is integrated during the time of reading. Thus, students' writing is affected by their reading, and how they understand what they have read. In this paper on the reading comprehension, the connection between reading and writing and the effects of writing on how students learn content will be discussed in light of the literature to illustrate importance in preparing students for writing they will do in their college classes.