Ключевые слова: arrangement, background, book, books, closeup, collection, color, concept, data, decorative, document, documentation, education, file, information, knowledge, learn, learning, leseband, library, line, literature, lot, message, nobody, note, object, office, paper, paperwork, picking belt, pile, press, reading, row, school, sort, sorting, sorting belt, stack, stacking, striped, study, studying, symbol, textbook, texture, valuable, white, workbooks,