Fairs are marketing events with a constrained time frame at which diverse producers, sellers or distributors exhibit their products or services. Professional visitors or end customers can gain an impression of the most recent trends and innovations of specific industry and compare their prices. The exhibitor, on the other hand, uses the fair to raise awareness for the own brand, for customer acquisition, and to gain information about the market situation and the competition. A yearly event is the PSI in Düsseldorf, the leading European trade show of the promotional product industry. Producers from all around the world gather here to exchange views and gain insights into the classics and latest trends in promotional material, strewing items and creative approaches to promotion. Exhibitors also inform themselves about the opportunities to use logos and slogans as well as the new print techniques and textile finishing methods.