Speciality design activities cover independent design services that shape the appearance, function and presentation of products, spaces and communications. Businesses may specialise in areas such as graphic and visual communication design, product and industrial design, interior design, fashion and textile design, or packaging. Their work can include developing concepts, preparing sketches and digital designs, selecting materials, colours and finishes, and producing specifications or prototypes for clients and manufacturers. Customers may commission designers for brand identities, logos, illustrations, layouts, product forms, furniture, clothing, fabrics, displays or interior schemes. Services can range from an initial brief and research through design development and presentation to guidance on production or installation. Some businesses offer a single specialist service, while others combine several disciplines.