Ключевые слова: background, blank, book, booklet, brochure, catalog, clean, close, closeup, concept, content, copy, cover, design, diary, document, education, element, empty, gray, illustration, isolated, literature, magazine, media, mock, mockup, object, open, page, paper, paperback, print, single, space, square, symbol, template, text, textbook, up, white,