[Class : 16] Printed Publications; Printed Matter; Printed Materials For Use In Education; Instructional And Teaching Material (Except Apparatus); Educational Publications; Books; Educational Books; Textbooks; Reference Books; Printed Dictionaries, Maps And Atlases; Printed Matter For Instructional Purposes; Printed Educational, Instructional, And Training Material, Including For The Elementary, Middle School, High School, And Higher Education Levels; Teaching Manuals, Resource Books And Guidelines; Printed Study Guides; Printed Examinations, Assessments, Learning Activities Worksheets, Lesson Plans, Educational Games, And Answer Sheets; Printed Research Reports.