16 Printed instructional or teaching material except electronic and electrical apparatus, all in the field of science and innovation; printed publications, namely, magazines, brochures, newsletters, journals, books in the field of science and innovation; boxes of cardboard or paper; posters; pictures; cards, namely, trivia cards, blank cards, flash cards, note cards, greeting cards; albums, namely, photo albums, sticker albums, event albums; postcards; almanacs; pamphlets in the field of science and innovation; writing or drawing books; calendars; books, namely, coloring books, index books, cook books, books in the field of science and innovation; newspapers; prospectuses in the nature of advertising pamphlets; paperweights; rubber erasers; folders for papers; envelopes for stationery use; drawing pads; files being office requisites, namely, labels of paper; writing materials, namely, writing chalk, blank writing journals, writing implements, pens; drawing materials, namely, drawing materials for blackboards, crayons, pencils, artists' charcoal; writing paper; desk mats; fountain pens; ballpoint pens; felt-tip pens