41 Arranging of contests; organizing exhibitions for cultural and scientific educational purposes; providing information in the field of education; provision of educational examinations being administering academic standardized tests; educational services, namely, providing classes, seminars, and workshops at the primary, secondary, college, and graduate level; organization of educational competitions for students in the field of math, language arts, history, social studies, science, and other school subjects; development and dissemination of printed educational materials of others in the field of math, language arts, history, social studies, science, and other school subjects; arranging and conducting of educational events in the field of math, language arts, history, social studies, science, and other school subjects for cultural and educational purposes; publication of educational materials, namely publication of articles, books, textbooks, activity books, teacher guides, hand-outs, workbooks, journals, playbooks, training manuals, worksheets and cards in the field of math, language arts, history, social studies, science, and other school subjects; digital image editing services; publication of multimedia material on-line, namely, publication of online texts, books, journals, video recordings in the field of math, language arts, history, social studies, science, and other school subjects; instruction in the field of mathematics teaching, provided via mobile devices; arranging and conducting of seminars, conferences in the field of math, language arts, history, social studies, science, and other school subjects and exhibitions for cultural or educational purposes; lending of books and other publications; mathematics academies; distance learning services, namely, providing online courses of instruction in the field of math, language arts, history, social studies, science, and other school subjects; educational services, namely, providing online classes in the field of mathematics; providing online videos featuring instruction in the field of math, language arts, history, social studies, science, and other school subjects, not downloadable; providing online non-downloadable electronic publications, in the nature of articles, books, textbooks, activity books, teacher guides, hand-outs, workbooks, journals, playbooks, training manuals, worksheets and cards in the field of math, language arts, history, social studies, science, and other school subjects; publishing of electronic publications; electronic library services, namely, lending library services for e-books, and on-line academic library services