16 Printed matter in the nature of periodical publications, magazines, books, booklets and catalogues in the field of employee, personal and organizational assessment and/or development, blank cards, business cards, stationery, office requisites in the nature of folders, calendars, diaries, notepads, pens, pencils, erasers, pencil sharpeners, pencil cases, rulers, boxes for pens, book markers, drawing materials for blackboards, printed instructional, educational teaching materials in the field of employee, personal and organizational assessment and/or development