Ключевые слова: accumulation, arrangement, background, batch, blank, blue, book, closed, collection, color, colorful, composition, cover, cyan, deck, education, expertise, green, group, hardcover, isolated, literature, magenta, many, nobody, object, orange, order, pack, paper, pile, pink, purple, rainbow, reading, red, series, set, spine, stack, textbook, variation, white, wisdom, yellow,