41 CONDUCTING CLASSES, SEMINARS, INTERACTIVE ON-LINE COURSES OF INSTRUCTION AND CERTIFICATION TESTING OF INDIVIDUALS IN THE DESIGN, INSTALLATION, RENTAL, SALE, OPERATION, REPAIR, AND MAINTENANCE OF AUDIO/VIDEO, PROJECTION, PRESENTATION, AND AUDIOVISUAL COMMUNICATIONS PRODUCTS AND FACILITIES AND IN PROFESSIONAL DEVELOPMENT RELATING THERETO, AND DISTRIBUTING EDUCATIONAL AND COURSE MATERIALS IN CONNECTION THEREWITH