I Don't Understand iTunes

Why does the album artwork sometimes change (to the incorrect album cover) even though I did nothing to effectuate the change?

Why can't I organize all the albums by an individual artist chronologically, rather than alphabetically? (I still do this, but I have to type the year in front of the album title, which takes a really long time.)

Speaking of alphabetizing, why doesn't iTunes know how to do it?

So annoying...