The Google docs charts aren't loading for me, and while I admire anyone who attempts to write in English when it is not their primary language (I'm assuming) there is just a bit too much off in the writing that makes it awkward to follow.

For example, I'm pretty sure the title should be "Visual Art on a Hockey Stick Curve." Maybe the the adjective "steep" belongs there as well, though the metaphor of a hockey stick should convey that.