16 Paper and cardboard; printed matter, namely, printing fonts, transparencies, adhesive letters; bookbinding material; photographs; stationery and office requisites, except furniture, namely, thumbtacks, adhesive tape, clips for holding papers, correction liquid for documents, paper cutters, notebooks, adhesive labels, document files, staples, rubber bands, staplers, notepads, wrapping paper, paperweights, pencil sharpeners, envelopes, blank cards; adhesives for stationery or household purposes; artists' and drawing materials, namely, pens, pencils, sketchbooks, paint easels, markers, drawing boards, fabrics specially designed for painting and painting canvases, drawing chalk; paintbrushes; printed instructional and teaching materials in the field of language teaching; plastic sheets, films and bags for wrapping and packaging; printers' type, printing blocks; printed matter and printed publications, namely, magazines, journals, diaries, albums, yearbooks, calendars, brochures, printed illustrated stories, diaries, dictionaries, encyclopedias, forms, guide books, study guides, manuals, maps, score sheets, postcards, programs of events, print advertising boards of cardboard and paper all in the field of language teaching and study travel organization