Ключевые слова: 2020, ancient, antique, background, blue, book, bookcase, bookshelf, bookstore, brown, classic, collection, college, color, cover, education, hardcover, information, knowledge, law, learn, learning, leisure, library, literary, literature, old, open, page, paper, pile, read, research, retro, row, school, science, shelf, stack, study, textbook, texture, university, vintage, wisdom, year,