[GeoffR]

Originally Posted by SteveEisenberg

And if you believe Kobo, people are actually falling for it:

This doesn't necessarily mean that anyone has bought that particular book. The way Kobo rankings seem to work, all books with an identical title and author are treated as the same book. There is more than one book with the title "Sherlock Holmes Omnibus" by "Sir Arthur Conan Doyle", so buying any one of them will cause all the others to increase in their ranking too.