No matter what kind of graduate degree you plan to pursue, there is one essential skill by which all applicants will be judged: writing. Although a majority of people wouldn’t consider themselves writers, it is still a skill that every graduate student should have some competency in. If you write a research report, a letter to a client or emails poorly, it will not reflect well on you as a professional.
This is, in part, why admissions committees require essays as part of the application process. After all, if you can’t express yourself in a clear, concise, grammatically correct and typo-free manner, then you may lack the skills to succeed in whatever program you are aspiring to pursue.
There are various types of essays that graduate programs require, but personal statements and statements of purpose are the most common. The purpose of these essays is for admissions committees to get to know you better and determine what kind of student you will be in the program, as well as your professional goals as a graduate.