Ключевые слова: background, big, book, book shop, bookshelf, bookstore, cardboard, collection, color, concept, cover, education, fiction, folder, glasses, group, heavy, information, knowledge, lay, learn, letter, library, light, literary, literature, lot, many, mixed color, newspaper, notebook, office, page, pages, paper, pencil, pile, print, read, research, school, science, side, stack, study, studying, textbook, thick, university, white, wisdom, word, write,