Ключевые слова: a4, abstract, ad, advertising, background, bifold, black, book, booklet, brochure, business, catalog, concept, corporate, cover, creative, design, dynamic, education, effect, flyer, fold, folded, folder, geometric, graphic, illusion, layout, leaflet, line, magazine, marketing, modern, motion, optical, page, pamphlet, paper, pattern, presentation, print, publication, report, shape, sheet, stripe, style, template, texture,