Shop interior designers are professionals who specialize in designing the interior spaces of retail shops and stores. They work with clients to create visually appealing and functional interiors that enhance the shopping experience and maximize sales. The duties of a shop interior designer may include conducting research on current design trends and materials, developing design concepts and plans, creating 3D visualizations of the space, selecting colors, fabrics, and furnishings, and overseeing the construction and installation of the design.