9 Downloadable electronic publications in the nature of books, textbooks, interactive-books, and interactive-textbooks in the field of prekindergarten through postgraduate subjects, namely, the arts, computers, home economics, language, literature, mathematics, philosophy, physical education, religion, science, social science, social studies, technology, and vocational studies; digital media, namely, digital software applications, downloadable electronic data files, downloadable art files, downloadable audio files, downloadable games, downloadable video and movie files, and downloadable interactive-files featuring prekindergarten through postgraduate subjects, namely, the arts, computers, home economics, language, literature, mathematics, philosophy, physical education, religion, science, social science, social studies, technology, and vocational studies; interactive-multimedia software applications featuring prekindergarten through postgraduate subjects, namely, the arts, computers, home economics, language, literature, mathematics, philosophy, physical education, religion, science, social science, social studies, technology, and vocational studies