That was an intense chapter. Go have a nice beverage of some kind if you're still with me, you deserve it. If not, don't get too discouraged--that was a lot of material to get through, feel free to come back later if you need a refresher.
We've gone through DOM manipulation and looked at SVG in great detail, covering everything from drawing shapes manually to using transformations. Finally, we looked at CSS as an alternative for making things pretty.
Everything we look at from now on is going to build on these basics, but you now have the tools to draw anything you can think of.[footnote]