A letter of intent (also known as a letter of introduction) is written by someone wanting to attend a graduate program. The letter will introduce who you are and tell the school why you want to get into their program.
If the letter is being sent as a hard copy, then it should be in the proper business format, otherwise, if the letter is being emailed, it should have an appropriate subject line and proper grammar.
I am currently a senior attending [College Name]. My major is in environmental science with a minor in political science. I am writing to express my interest in the Sustainability in Action graduate program at [Grad School Name]. I saw the effects that pollution has caused in my neighborhood, and would like to help prevent this from happening in other neighborhoods and this program will help in achieving this.
I have an exceptional academic record that also boasts many extracurricular volunteer activities that I have participated in throughout college. I have earned a place on the Dean's list for seven consecutive semesters. I have received scholarships for my research on the ecological structure of several sites, including the rainforests. When it comes to volunteer efforts, I have participated in numerous on-campus recycling awareness events. I serve as President of the [College Name]'s Volunteers for Tomorrow club, and I also work as the vice president for the campus theater club. I feel that I am a highly a qualified candidate for the program.
I learned of [Grad School Name] sustainability program through my professional advisor at [College Name], and I was thoroughly impressed by the internship opportunities provided there. I am confident that [Grad School Name]'s Sustainability in Action graduate program would provide me with the hands-on experience I need for my future career in conservation education.
I would be very interested in discussing the prerequisites on applying for scholarships and financial aid. My phone number is [Your Phone Number]. Thanks for your consideration.