Hi AlexTurner, I would suggest you go for "Everyone Can Learn Origami".

Learning how to make origami dragon will require a lot of effort from your side. You have to understand the different folds and that means you have to put in a lot of practice. Learning how to fold the paper means to understand how to apply just the right kind of pressure that allows you to fold in a quick and precise manner.

Generally origami models are explained by a diagram, which is a drawing sequence showing each step of the folding process. These diagrams are highly standardized and can be very useful for beginners. There are many books as well that can be very useful in your case, some that come to mind are Everyone Can Learn Origami, Origami Jewelry, Easy Origami, etc.