Ключевые слова: abstract, art, back to school, background, black, blackboard, blank, blur, board, books, chalkboard, class, classroom, college, copy space, copyspace, creative, desk, discipline, education, empty, empty space, essentials, experience, high, knowledge, learn, lesson, nobody, note pad, object, open, primary, school, science, stacked, stationery, students, study, subject, supplies, teacher, teaching, university, workplace,