With the title of the book being called "Dragonart," it initially made me think its focus would be on Dragons but, in actuality, the book is more broadly aimed at the fantasy genre as a whole, taking on subject matter such as fairies, goblins, dwarves and some other mythical creatures. While it does focus on dragons for quite a few pages nearer the middle end of the book, and some of the tutorials there are alright, I will say there are better books out there that deal with just Dragons in a much more comprehensive way.
After a couple of pages in, I begun to realise who this book was mainly aimed at. If you're someone who is working as a professional artist in one capacity or another, or even if you're looking to start to get really serious about drawing, then I wouldn't recommend this book to you because it oversimplifies the key fundamentals of drawing (like colour, perspective, light and shadow, practicing simple shapes and understanding them as three dimensional objects).