This respectful, professional goodbye letter is from an intern to the company they interned with.
Dear {Recipient},
Thank you so much for allowing me the opportunity to work within your company for the last {number} months. This internship has been incredibly educational and enlightening for me and I am so grateful to have had the chance to learn from experts within the field.
In particular, I think that learning {aspect} and {aspect} will be helpful in my studies in {major}. I think that when I am finished completing my {MA, MFA, PhD, etc.} I will have even more skills that could potentially benefit this company in the {aspect} department, especially since I am focusing my {dissertation, thesis, etc.} on {subject}.
Once again, thank you for this amazing opportunity. Your patience and tutelage have been an enormous help to my future, and I will miss all the great relationships I have established in the last few months. I hope to keep in touch with everyone as my schedule will allow.
Sincerely,
{Sender}
