The target audience is young writers, but even as an adult I learned a lot to improve my own writing craft. The fact that the book is so short and written simply, with its young audience in mind, makes this even better. I read it in about 2 hours, compared to the nearly 6 I spent reading Stephen King's On Writing just before (which I also really liked). Great for getting a lot out of a particular topic if you don't have lots of time.
Each chapter has a writing exercise. They start out simple in the early chapters, but later exercises build on previous ones and/or really get you thinking and being creative. I didn't do any of them myself (yet) because I was just trying to get through the book, but they're all really good for young writers, and I'll probably be revisiting some of the more complex ones myself.
I initially thought to give this 4*, but considering I'm not the target audience and thinking about it from that perspective, it's a solid 5* from me.
I'm not a fan of religious history, so I found this difficult to engage with. It's also 350 pages wherein its main topic, the Templars, aren't actually brought up until Part 3, over 100 pages in. I prefer a more direct approach to a topic.
While not a good book for me, I WOULD RECOMMEND to those with more interest in religious history and the history of the Templars with a large amount of context provided around their founding and what brought the Holy Land to where it was at their founding after the First Crusade. The book is well written, but very dense. And while it takes forever to get to the point of the title, everything leading up to that point is historically relevant and puts things into context.