By Joanna Penn

A few weeks ago my friend Joel Friedlander sent me an email (partly shown left) that he had been sent by Amazon which recommended my novel Pentecost next to John Connolly whose supernatural mysteries I really love to read myself.

I was absolutely overjoyed by the news! I put it on Twitter and also received the tweet below showing that Pentecost is being shown in the list of books that other people have bought. Subsequently I have seen it come up myself when I’ve gone in to look at other fiction books of a similar type.

This is evidence that the Amazon algorithms are kicking in and they are starting to market Pentecost themselves. These algorithms are top secret and no one knows for sure how to ensure this type of thing happens, but... More...