Ключевые слова: abstract, art, background, book, bookstore, brochure, browse, business, close, concepts, cover, culture, data, educate, education, fan, flip, graduation, green, hardcover, idea, information, isolated, knowledge, law, learning, library, literature, material, novel, object, office, open, opened, page, pages, paper, print, printed, publication, publish, read, reading, textbook, turn, university, words, write, writing,