16 Printed matter, namely, brochures, pamphlets in the field of teaching and training adults in effective parenting skills, and teaching and training others to teach adults in such skills; course instruction manuals in the field of teaching and training adults in effective parenting skills, and teaching and training others to teach adults in such skills; printed guides and plans about teaching and training adults in effective parenting skills, and teaching and training others to teach adults in such skills; books in the field of teaching and training adults in effective parenting skills, and teaching and training others to teach adults in such skills, for use in conjunction with educational and training manuals