Summary

Display your geek side proudly! Are you a Marvel fan? Show the world! Are you a DC addict? Let the people see! Do you read obscure Image comics that no one has ever heard of? Show them what they are missing!
Hang your comics on the wall, without using tacks!
I use small strips of 2 sided tape to stick them to the wall. Once you stick them to the wall, press and hold each corner for several seconds, you don't want it falling off. I would recommend one mount per each corner of comic.

Probably best to test this with less-valuable comics for a couple of months before you display anything valuable!