Naively I thought that learning would aim to finish on a good work (like the cover painting) none of this.
So yes I have learned things, but some chapters have really annoyed me, especially coming from a draftsman. I think in particular the chapter on brushes that was really ideal for us to present the application of said brushes on a beautiful drawing (or even ugly), instead of that we are faced with a mass of scribbles (the speed painting made me hallucinate). Sure it has many details from the author on the settings, but it's really not pleasant to follow.
So yes it really fundamental, maybe I expected too much ... well having learned many things I did not feel so advanced it in the end, I come even very frustrated with this purchase.
It's still well on a personal judgment, I saw the good reviews on this training and javoue be pretty pissed when I write what can be done me some good sides obscure yet. Nevertheless I find that its price is really too high (for me it is not over 15 instead of 39 (although it can be found is 31 looking good)) for what we have and in the end I'm not really more advanced on this software.
There is another training Painter the same author or apparently this time we follow a step by step drawing (which still reassures the talent of the author), but scalded good cat fears cold water.
Any way if like me you have not mastered English well, the choice is quickly limited to these two formations, to believe that Mr. Sibertin is the only French to use this software.