Interior Signs Well-appointed, quality interior sign systems create the right impression on customers and visitors, whether the signs are purely functional or whether they are making a statement about the nature of your business. Cost-effective promotional signage can not only generate brand awareness, it can also generate sales. Point-of-sale display material can draw attention to specific promotions or special offers and with up to 70% of all purchase decisions being taken within the retail location, a customer-friendly environment is essential.