Fan Mail...for me?

So today I got two (2!) pieces of "fan mail"...never, ever, saw that coming. They were in reference to my guest column in the latest issue of RUSQ. One comment was via FB from an acquaintance, but the other...oh the other... A handwritten piece of snail mail, which contained a sticker in the shape of a book, with two sentences written on it. It's so curious to me that I had to scan it in and share it.
A colleague tells me to begin expecting these little oddities to show up every so often. What an interesting profession I've chosen.....