16 Paper, cardboard and goods made from these materials, namely, bookmarkers, printed books featuring science, technology, engineering, mathematics and social sciences, copying paper, drawing pads, envelopes, informational flyers in the field of education, personal and professional development, graphic reproductions, graphic representations, writing or drawing books; printed matter, namely, paper signs, books, manuals, curricula, guides, newsletters, informational cards and brochures in the field of education, personal and professional development; stationery, namely, paper, stickers, seals and file pockets; printed instructional and teaching materials in the field of education, personal and professional development; printing blocks; printed advertisement boards of paper or cardboard; booklets in the field of education, personal and professional development; calendars; catalogs in the field of education, personal and professional development; greeting cards; printed matter, namely, handbooks in the nature of books featuring science, technology, engineering, mathematics and social sciences; printed matter, namely, manuals in the field of science, technology, engineering, mathematics and social sciences; notebooks; newsletters in the field of education, personal and professional development; sealing stamps