Writing descriptive essay may sound very simple. In reality, it can be a very daunting task especially if a student is not familiar with the rules of writing this essay. Descriptive essay is used to describe a person, animal, object, location, or event. Basically, there are two ways of describing things depending on the student's purpose. If the student seeks to describe the subject of the essay in a matter-of-fact way by enumerating in detail its appearance or condition the student is writing an objective descriptive essay. In this kind of essay, the writer uses cold and hard facts to describe his subject. The objective descriptive essay is often used in writing journalistic reports or scientific reports. If the student seeks to convey a certain feeling or mood to the reader then the student should write a subjective or impressionistic descriptive essay. Regardless of the kind of essay the student is preparing, there are certain rules in writing this essay which the student should observe.1. Focus on the subject of your essay. If your topic is a celebration then the student should stick on his topic and describe only the celebration. If your topic is a person then the student should focus on the person, his appearance, character traits, and personality. Do not make the fatal mistake of deviating from your topic as it would confuse your readers2. Reveal to the reader the reason why you are writing an essay about the person, place, event or location. Tell your reader what makes the subject of your essay worth reading3. Give exact and detailed descriptions. The goal of this essay is to create a mental picture in the mind of the reader so that the reader actually feels as if he is seeing or witnessing the person, place, event or thing in front of him. Perhaps, it will help if you close your eyes and try to imagine the person, place, event, or location which you are describing. Describe it to yourself and see if you are able to create a mental picture of the subject of the descriptive essay.4. Utilize all your senses in writing descriptive essay . Do not limit your description to what the eyes can see. You should write in a way that your readers can see, hear, smell or taste the subject of your essay. You need not only tell them what is happening but you must let them "see" what is happening using your choice of words.