I love this 2006 letter from Kurt Vonnegut to Xavier High School students. The assignment by their English Teacher, Ms. Lockwood, was to write a persuasive letter to their favorite author asking them to visit the school. No authors visited and only Vonnegut replied. This was six months before he died.
I’ve pulled out his poetry prompt in case you’re inspired to give it a try, and included video of Sir Ian McKellen’s reading of the letter.