No Code / Vitalogy artwork: hidden "messages" etc. ?

TT8270

Several years ago I read an interview where Ed said something like "It's called No Code because it's actually full of code" or something like that. I guess he meant that there are some hidden messages or "secret" stuff on the artwork. The one I know of is when opening the cd booklet you can see that the photos reveal square, triangle and circle. For some reason I always thought there's lots more than that but never really found anything. So maybe someone can help?

Another thing is Vitalogy artwork, lots of interesting photos & text there too but is there some cryptic info also?

Hope this thread clears these things up when other members share their knowledge. Should be a fun/educating read to a PJ fan.

cheers,
TT