Making it Up As I Go

I’d like it noted that I could be counting the book I’m currently reading, Hercule Poirot’s Case book, as 7- as its a collection of Poirot Investigates, Dead Man’s Mirror, the Regatta Mystery, Labors of Hercules, Three blind Mice, the under Dog, Double Sin. However, for now, I’m only counting it as one. I might change my mind later though.