"Cumulative Effect" is a legendary book, which in the West has long been dubbed a bible for self-development and a laboratory for studying success. First published in Russian. Recognized as a bestseller of such prestigious book ratings as The New York Times and Wall Street Journal. Small steps to big goals - this is the meaning of the cumulative effect. It was formulated by millionaire, entrepreneur and life coach Darren Hardy. He earned his first million at 24, and at 27 his company had a turnover of $50 million. In the book, the author cites 6 strategies for success, but recalls that the secret ingredient for each of them is precisely the cumulative effect.