I haven't found one, like I mention in the article; I'll edit it if someone proves me wrong.
I'm starting to get a feel for a pattern - the books tend to be more expensive, and also take longer on average to deliver (a few weeks, instead of a few days). The latter would be normal for rare editions and some third-party sellers, but if I'm ordering a popular book and it takes longer than usual to deliver I can kinda smell the dead rat. But the only way to know for sure is to open the box in disappointment.
I'm starting to get a feel for a pattern - the books tend to be more expensive, and also take longer on average to deliver (a few weeks, instead of a few days). The latter would be normal for rare editions and some third-party sellers, but if I'm ordering a popular book and it takes longer than usual to deliver I can kinda smell the dead rat. But the only way to know for sure is to open the box in disappointment.