Abstract: A sign holder for displaying a second sign at a position adjacent a first sign and which facilitates readily changing the second sign to alter the information displayed on the second sign. The holder includes a base member having a rigid support portion and a display portion. The rigid support portion is sized and shaped for being received by a frame supporting the first sign. The holder is held in an upright orientation with the display portion of the base member disposed adjacent to the first sign. A sign mount on the display portion mounts the second sign on the holder to display the second sign. The sign mount is configured for selectively interchanging the second sign with a different second sign to change the information displayed without altering the first sign.