Write a personal statement of purpose to the department of political science for master degree .

I am applying to this department of political science for master degree but they asked me to write A personal statement of purpose.personal statement of purpose written and submitted by the applicant. This should be a concise, sharply focused and well-crafted essay of a page or more that conveys intellectual ambitions, indicates how the program of study satisfies the student’s interests, and how the student would contribute to the program.