Ключевые слова: alphabet, background, become, book, bookshelf, bookstore, business, closeup, collection, college, color, concept, cover, desk, dictionary, document, education, educational, group, heap, information, knowledge, learn, letter, library, literary, literature, object, old, open, page, pages, paper, pile, read, research, school, science, shelf, stack, study, studying, text, textbook, university, vintage, white, wisdom, words, write,