In today's highly competitive and ever-changing world it is extremely important to acquire the ability to explain your point of view, your contention as well as the gist of the topic you are familiar with. Whether you intend to become a teacher or have chosen other career path, it is imperative, even indispensable for many careers to develop good communicative skills. During your study at the University you might be assigned with several types of written assignments that help you to develop and enhance communication skills. I would like in this article to focus on two of them, expository essay and persuasive essay. In spite of the fact that the structure, style and some other elements of these writing projects are similar, there are some notable differences between them.