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Education, namely, providing classes, seminars and workshops in the field of optics; providing of training in the field of optics; organizing community sporting and cultural events; drafting of texts other than advertising texts; layout services other than for advertising purposes; arranging and conducting of educational colloquia, conferences, congresses, seminars, symposia and training workshops in the field of optics; provision of online non-downloadable electronic publications in the nature of magazines and newsletters in the field of optics; publishing of books; organisation of exhibitions for cultural or educational purposes; publishing of electronic books and journals online