Hanging guitar on wall

1. Is it OK to hang a guitar on the wall?
2. Should I hang my guitars by the neck?

Is it OK to hang a guitar on the wall?

The answer is no. It's generally accepted as a safe way to hang a guitar because the downward exertion from the weight of the guitar isn't nearly as strong as the pull of the strings in the opposite direction. ... You may need to run a humidifier in the room with your guitar during the winter when the heat is on.

Should I hang my guitars by the neck?

Expensive guitars hang on the walls of stores and studios everywhere. Common sense and physics support the idea that any minor pressure deferred through the neck or body of the guitar by hanging is offset by significantly greater pull power from the strings.