The thing is, I and a number of other authors here think there's something going on in the back end/code at NookPress. My personal opinion is that we're on some kind of rolling blackout on the servers, like eBay denies doing to its sellers (while charging them full fees, of course).
Case in point: I'll have zero sales for days. Right now I'm going on 5 days of zero sales. But, the previous week, I got 8/3/5/5/4/2 sales. The previous week, people were buying my books more or less consistently. This week? I guess they're just not finding me. Figure that one out? Rolling blackout is one possible explanation. That would be slimy, but...not actionable.
Another is that people really aren't buying ANYTHING for days on end, and then suddenly are for a week, and then aren't again. It could happen.
Another is that they're just adding up sales and posting them to our accounts in bunches. That would be okay, but disheartening.
Teenbaker -- the solution is to write another cookbook (or something else similar to your cookbook). The sad truth is, potential buyers are reluctant to buy an author's one book. But if you come out with your fifth book, people are more willing to try it -- and if they like that fifth book, readers will go back and surf the listings for your first four books.
I think sales are really slow right now but, I also think they are not put on right away some times because I can have 20 one day and 1 the next day none