PowerPoint takes a simple bulleted list and turns it into a SmartArt graphic.
You've gotten an overview of the types of SmartArt graphics available. Now, get the nuts and bolts for how to create one.
There are a couple of different starting points: You can begin from an existing list on your slide that you convert, or you can insert a blank graphic and put content into it.
Then, learn to work with the graphic. Add text to shapes by using a handy Text pane. Move shapes and text where you want them in the layout. Try another layout if you decide there's a better one.
SmartArt graphics support you all the way and do most of the heavy lifting. You get to have the fun.