Don't bother - it's shit.
"Wish You Were Here" is far, far better.
Well... maybe, maybe not.
I like Wish You Were Here a lot, but it's much less iconic.
Anyway - being a head case myself, I find myself swaying between the dismal hopelessness of Animals, and the down-right nuttyness of Dark Side of the Moon
.
For some reason, my copy of Animals is very faint - I have to turn it up to 10 to hear it. Of course, then I forget and melt my ears next time I put some Van Halen on...