A giant pet peeve of mine is reading books out of order. When I stumble upon an author who is new to me, whose work I enjoy, I like to go to the beginning and start with their first book and read them in order from there. Many books stand alone and can be read in any order and still be entertaining, but reading all the books by an author, especially those with a recurring character, builds layers of comprehension and enjoyment that is missed if you go in random order.