Ключевые слова: aged, ancient, antique, background, book, books, bookshelf, brown, closeup, collection, college, cover, dark, document, education, group, hardcover, heap, history, information, knowledge, learn, learning, library, literary, literature, objects, old, open, page, paper, pile, read, reading, research, retro, school, science, sheet, shelf, stack, study, teach, text, textbook, texture, university, vintage, white, wisdom,