Is There a Market for Your Book? (Or Are You Just Talking to Yourself)?

There’s a curious question that wakes a lot off writers at about 2:17 AM: Is there a market for this? The question arrives wearing sensible shoes, possibly holding a clipboard. It doesn’t shout. It doesn’t accuse you of being delusional. It simply raises an eyebrow and asks whether you’ve considered the commercial viability of your fragile, half-formed idea.