I was reading the "Tell me there's more to romance writing than formulas and Harlequin" thread and someone mentioned that the only "formula" was it had to have a HEA and a story about the relationship at the heart of the book. Are there other unwritten rules? (If there are written ones somewhere how do I get a copy?) I'm new to the game and though I've read a lot of romances, I of course tend to read authors I like so there's a lot out there I don't read. For instance, I don't read contemporary or paranormal (Twilight series I do confess to). But from my reading I have ideas about what is allowed and not allowed, just not sure how unconventional you can be in the changing market. Any help with this is greatly appreciated.