16 A series of books and written articles in the field of languages; A series of books, written articles, handouts and worksheets in the field of languages; Books in the field of languages; Children's books; Educational books featuring languages; Educational publications, namely, educational learning cards, flash cards, activity cards, workbooks, textbooks, activity books, story books, puzzle books, printed puzzles, teacher guides, manuals, posters and educational booklets in the field of languages; Educational publications, namely, books, pamphlets in the fields of languages; Pamphlets in the field of languages; Printed lectures; Reference books in the field of languages