Abstract: A decorative cornice assembly to be mounted onto in-store product display fixtures, is disclosed. The various embodiments are modular, and readily can be assembled and installed in store environments. The assemblies support and display graphics displays, such as advertising and informational headpieces. The assemblies are designed to be used in association either with one sided or wall mounted display fixtures or with two sided fixtures. Decorative moldings can be incorporated to complete an attractive visual appearance to the cornice assembly.