Ключевые слова: abstract, background, blank, blue, book, book cover, business, business finance and industry, chair, chart, computer, concept, currency, cyberspace, datum, desk, desktop, digital, display, education, expertise, finance, futuristic, gold, hardcover book, horizontal, ideas, illustration, information, investment, investor, laptop, learning, library, literature, money, network, no people, notebook, paper, science, signs, stack, success, technology, threedimensional, wisdom,