Ключевые слова: appreciation, art, background, banner, blackboard, board, book, business, calligraphy, card, celebration, chalk, chalkboard, class, classroom, college, concept, day, design, education, element, face, funny, glasses, graphic, greeting, happy, holiday, illustration, information, knowledge, label, learn, learning, lettering, man, national, one, open, page, person, portrait, poster, profession, professional, professor, quote, school, sign, smart, smile, student, study, symbol, teacher, teachers, teaching, template, text, university, woman, world,