This page contains a mixed bag of settings, some of which are pretty self-explanatory, while others will require us to think quite carefully about what we need to do. To start with, we are presented with a few text boxes that control things like the name of the site and the site slogan.
Nothing too earth shattering, although I should point out that different themes implement these settings differently, while some don't implement them at all.
For example, adding a slogan in the default Garland theme prints it after the site name as shown in the following screenshot:
Whereas, the Stark theme places the slogan beneath the site ...