Ключевые слова: analysis, approach, author, background, business, businessman, button, chart, coffee, complex, concept, conference, contract, crash, currency, desktop, double, economic, exchange, exposure, finance, financial, forex, global, growth, hands, index, invest, journal, journalist, laptop, machine, man, market, marketing, mobile, multi, pc, push, quiz, rate, sketch, stock, studying, trade, trader, trend, typing, using, volume,