Keywords
abundance, book, book cover, closed, color, colorful, differential focus, education, expertise, hardcover book, high angle view, ideas, indoors, intelligence, knowledge, learning, leisure activity, literature, medium group of objects, nobody, on top of, order, paper, photo, photography, pile, simplicity, stack, unknown, vertical, vibrant color, white background, wisdom, stock image, images, royalty free photo, stock photos, stock photograph, stock photographs, picture, pictures, graphic, graphics, fine art prints, print, poster, posters, mural, wall murals, 360004