I have - I was looking at an authors website to see if there were any new books, and I say a button for email, so I pressed it, thinking it was to sign up to a newsletter and it was actually his email! So as it was open,I worte a quick note about how much I liked his work and the next day there was a reply in my inbox! The very wonderful M.T.Anderson, who writes the funniest children's books and then very interesting teen fiction too.
Haven't written to authors, but have met a few at talks or launches.
But have written to stage actors' & one movie star.
Of all of these, only had two not return an autograph!
One I thought was strange not to do so, & the other had a reason, which I learnt about later on, so fair enough!
When I get pleasure out of reading a good book which an author has sweated over for possibly two years, and then waited another year until it is published, I show my appreciation by sending a 'thank you, I loved it' email. Every author has replied. An Australian children's author was going through a slump with her second book, she outlined the problems, then said that my email had cheered her up. I don't look at it as fan mail, just recognising a job well done.