Despite having been edited, rather than being an actual photo, you can not see where the Dog's original leg was. There's jsut something iconic about a three legged dog.

This cover is better (in my opinion) when complimented by the yellow version of the case, whereas clear case users will see the dog in black and white I always think of him in yellow.

I am a big fan of Alice In Chains and Alice In Chains album covers. This, apart from the cover to "The Essential Alice In Chains" which doesn't count, is my favourite overall.
Possibly top three in my favourite album covers, definitely top ten.