A trade fair, also known as an EXPO, is an event where businesses and organizations showcase their products and services to potential customers. It is a great opportunity for companies to network and build relationships with other businesses in the industry. Trade fairs are usually held in large venues such as convention centers or stadiums, and can last anywhere from one day to several weeks. They are often accompanied by seminars, workshops, and other activities to help attendees learn more about the products and services being offered.