12. Omnibus oops
“I’ve just finished the first three books in your Protagonist series. I want more! The copy I have seems to be a first printing, and there aren’t any further books listed in the front, even though I know there are a dozen books in this series. I go to your website and pluck the next title from your comprehensive, chronological list. I run to the store. It’s in stock! I glance at the first few pages, and …oh, hell. I’ve already read this. It’s an omnibus of the first three books! Now I’m twenty miles from home and I have no idea what the next book in the sequence is.”
If your books are compiled into an omnibus, mark it as such in your bibliography and indicate which books it contains.