All I can do is smile when Amazon tries to sell me one my own books.
This happens more often than you might think. Every few days I go and check each of my books to see if there are new reviews and to ensure everything on the page is correct and working. Usually, I’m on the page for less than a minute, but Amazon takes this as interest in the book.
So, about once a month I get an email trying to sell me one or more of my paperbacks, ebooks or audiobooks. I have no idea why Amazon thought I might want the middle book.