The blurb under the profile picture is accessed by clicking "About". Anything in that first section will show up in the box on your page. Mine is shown as author.
A couple of other features that are useful are the highlight (star) and edit/remove (pencil) on the top right hand corner of each post. By choosing highlight, the post will be spread over the whole page (double column) and will show at the top of your posts for 7 days.
One thing I didn't have much success with is the App section. I wanted to put a link to my Amazon page from one of the apps boxes, but the only choices I had was events, videos or find more apps. I'm wondering if this is because of the category I chose when setting it up (Books/Author). I went to the link to set up my own app, but that didn't work either.
I'm still working on making better use of Facebook although I still prefer to blog as I don't find it as cluttered as the posts on Facebook. Meanwhile, take a look at some of the links below, there are a lot of great tips on how to set up your page. If you have any ideas or want to share something you've learned, please leave a comment.
Timeline Facebook Guide
Marketer's Guide to New Facebook Pages
Timeline for Business Pages
How to Add Facebook Friends Link to Blogger
Making an App
Community Pages - What Your Business Needs to Know