The more technologically-advanced the world gets, the more some of us are tempted to abandon methods of communication that seem quaint and out-dated. Well, a yellow letter is a method of communicating with sellers that seems quaint on the surface but can be effective when it is crafted in the correct manner. In other words, communicating with potential sellers is never going to be out-dated. And communication – both written and oral – is a large part of what we as real estate professions do.