There are plenty of books about astrology, and there are plenty of books about the Enneagram. However, there is very little known about how both astrology and the Enneagram can be tied together which can provide extra insight about why people are the way they are. It can show a lot more about their personalities than they are aware of so they can take the opportunity to explore who they are on a deeper level. This can provide the insight that many people need so they understand themselves better which can lead to healing and self-acceptance. There is nothing woo-woo about this book because Miriam doesn't go for woo-woo. Just down-to-earth spirituality.