While putting together an inventory of our dad's books, my sister came across this fantastic letter from legendary hardboiled mystery-crime novelist John D. MacDonald, author of seventy-eight books, including the Travis McGee series. This was written in August of 1967, when our dad was an Army draftee stationed at Edgewood Arsenal, and was sent in response to a mash note that dad, a lifelong MacDonald aficionado, had mailed to him. It's worth a read:
As an aside, I love that small-caps font MacDonald's typewriter produced. Fantastic.