Rule 1: Please only post high quality, large scans if possible. People usually don't wish to see strongly compressed or smaller resolution scans when they are trying to find nice covers. If larger resolution ones can not be found anywhere then the largest and nicest looking ones that can be found is preferable.
Rule 2: If scans already exist for something you want to upload into this thread and you have larger/better quality ones, please post your scans in the thread that's already made instead of making a new one to clutter up this section of the forum. Use the search feature or look manually to find out if cover scans for what your wanting to upload exists.
This wont be strictly enforced at this point, so making a second thread isn't a big deal. But when that section grows larger, this rule will more than likely be enforced if it starts to get out of hand.