16 Paper; printed matter, namely, paper signs, books, manuals, curricula, newsletters, informational cards, vocabulary cards, brochures, magazines, journals, booklets, teaching materials, activity sheets, charts, leaflets, flash cards, workbooks, textbooks, story books, teacher guides and posters, in the field of symbols-based languages to aid reading and comprehension of written texts; printed publications, namely, paper signs, books, manuals, curricula, newsletters, information cards, vocabulary cards, brochures, magazines, journals, booklets, teaching materials, activity sheets, charts, leaflets, flash cards, workbooks, textbooks, story books, teacher guides and posters, in the field of symbols-based languages to aid reading and comprehension of written texts; printed instructional and teaching materials, namely, paper signs, books, manuals, curricula, newsletters, information cards, vocabulary cards, brochures, magazines, journals, booklets, activity sheets, charts, leaflets, flash cards, workbooks, textbooks, story books, teacher guides and posters, in the field of symbols-based languages to aid reading and comprehension of written texts; printed books, journals, periodicals, magazines, leaflets, pamphlets, newsletters and worksheets in the field of symbols-based languages to aid reading and comprehension of written texts