Yotsuba&!.. Whatever that means

Casey made me read Yotsuba&!, allegedly to educate me.

No idea what I'm being educated in, but I'm half done with the book.

I am still not sure what it is really about, and whether I ever were the intended audience. I don't even know what I think about it yet, or what I might think about it once I'm done with it, but it sure is weird.