Bonsai as an art is an ongoing learning process. Because of its practical nature, the more time you spend on it the better you will get. As your tree grows, so will your confidence and knowledge.
We are so lucky these days because the internet makes it easier more that ever to find resources online about almost anything.
Generally this is a good thing. There is however such a thing as too much information some of which contradict each other making the subject that you are trying to learn about even more confusing.
And learning about Bonsai Trees is no exception. Maybe the fact that this is an ancient form of art means that people have had centuries to get all the literature together.
Once I really got interested in Bonsai Trees, I spent hours both on and offline learning as much as I could about them. However, so many times I got frustrated because it seemed like the more I searched online, the more confused I got.
There is no denying though that there is a lot of good information out there and you do not even have to pay for some of it. I am constantly compiling information on the subject and will free books and other resources I get online here.