COMMERCIAL and business studies proved the most popular area of interest among thousands of visitors who attended the recent open day of the Kwun Tong Technical Institute. Crowds filled the rooms carrying displays set up by the Department of Commerce on subjects like insurance and import/export studies. Cartoons, charts and tables gave visitors a clear idea of what the courses taught. A presentation titled ''Tips on how to start a business'' highlighted the diploma in Import/Export Studies. Core subjects, including the Fundamentals of Marketing and Business Communication were introduced. This course is the most popular one in the commerce department, the biggest department in the institute. Compared with the other four departments, the commerce section has the highest number of students, with a total of 10 classes. Exhibits by the other departments filled almost 30 classrooms and special rooms. These gave visitors an insight into Garment Making, Pattern Making and Cutting, Audio Typing, Typing, Offset Printing, Vehicle Repair, Print Finishing, Computerised Typesetting and Business Machinery. Visitors were also shown how different machines are used in the various laboratories. Colourful posters and printing material made by the students were handed out as souvenirs. Special demonstrations on audio typing and print finishing attracted a large crowd. Outstanding student projects were also on display. Visitors to the language laboratory were invited to try out the latest headphone systems which are much more advanced than those used in secondary schools. A fashion show presented by the Department of Clothing Technology was held in the school hall. Viewers said they were much impressed by the professional touch shown in the design and making of the clothes. Founded in 1975, the institute had almost 2,000 full-time students in the '93-'94 year. It offers full-time and short courses in different departments, including Clothing Technology, Commercial Studies, Electrical Engineering, Electronic Engineering, Mechanical Engineering, Motor Vehicle Engineering and Printing.