Ключевые слова: 2020, alternative, ample, announcement, back, back to school, background, banner, beginning, black, blank, board, capital letter, clarity, classroom, cleanliness, cleanness, clearness, coming back, concept, concept purity, copy space, covid, education, end, english, holidays, horizontal, invitation, large, left, letter, letter board, lettering, monochrome, natural, new, new normal, no people, nobody, period, personal, return, school, social, start, to, university, white, word,