You can't tell the books from the writer--or the writer from the books

I'm always surprised by the number of times at cons that I hear something along the lines of, "She doesn't look at all like I expected."  Even ignoring the fact that you can Google pretty much any writer these days and find pics of them, it's always a bad idea to assume that a writer's appearance and their work will have anything in common.  In addition, over time many writers change the types of books they write, so any one association would make no sense at all.

Enjoy the books, enjoy the writer, and don't expect them to look at all alike.