Ключевые слова: 3d, advertising, background, blank, book, brochure, business, close, cover, design, document, education, empty, for advertising books, front, good, gray, grey, hardcover, illustration, isolated, layout, leaflet, magazine, marketing, mock, mockup, object, on a white, open, page, paper, paperback, poster, presentation, promotion, realistic, sheet, single, space, stands, table, template, textbook, up, vertical, white, with a gray background, wooden,