What are treatments for gypsum board joints?

There are a few ways to treat joints. The best way to create a solid appearance is to mud and tape them. This is more time consuming and takes a bit of skill, but it creates the appearance of one solid unbroken wall. Another method is to cover the joints with thin strips of wood, either decorative or painted to with the wall. There are also crafty methods such as tacking thick pieces of cording over the seems.