Ключевые слова: academic, alphabet, assignment, background, blank, blocks, books, brown, class, coaching, concepts, course, cube, education, exercise, grade, guide, ideas, improvement, instruction, intelligence, knowledge, learn, learning, lecture, lesson, letters, level, minimal, reading, scheme, school, sepia, session, sign, skill, space, study, syllabus, teach, text, training, tuition, typographic, understanding, vintage, wisdom, wood, word, wording,