This article pointed out that you can use the Listmania! feature on Amazon to let readers know what other books your book is like. So I made this list.
And clearly, given the kind of book it is, Trang needs wacky people and aliens on the cover. Sigh. This is where my lack of artistic ability and the limits of POD publishing really chafe me. It needs to be a fat little paperback with wacky cover art! Oh well.
Oh, and I figured out how to determine if "invisible" text will remain invisible: I have put little white bullets in a place where they will look purposeful and decorative if they do in fact print. Since I'm going to have to (sob) lay the book out again anyway, and the invisible text does look a tiny bit better, I think it's worth it to see if it works.