Ключевые слова: aged, ancient, antique, background, book, bookcase, books, bookshelf, brown, classic, college, cover, design, education, information, knowledge, learn, library, literature, old, open, page, paper, pattern, print, retro, row, school, science, shelf, spine, stack, stethoscope, study, table, textbook, texture, university, vintage, wall, wallpaper, white,