Ключевые слова: background, book, books, bookstore, business, college, data, document, documents, education, expertise, file, files, folders, graduation, group, information, intelligence, isolated, learn, learning, library, literary, literature, more, objects, office, organization, organize, paper, papers, paperwork, pile, publication, read, readings, school, science, stack, student, study, studying, supplies, text, textbooks, traditional, university, white, work,