Ключевые слова: accumulation, arrangement, background, blank, blue, book, books, closed, closeup, collection, color, composition, cover, design, education, fanned, green, group, hardcover, isolated, learning, library, literature, macro, many, nobody, object, order, page, pages, paper, paperback, pile, reading, school, series, set, spine, stack, study, studying, table, textbook, tower, variation, volume, white, winding, wisdom, writing,