Bill Gates, the extraordinarily successful American business leader and philanthropist. One of the best-known entrepreneurs, who started a business out of a tiny space and grew it into one of the most powerful companies in the world, Microsoft. The tech billionaire legend has estimated net worth of over $100 billion. After spending 13 years as world’s richest man, he now spends his time and energy on tackling global poverty, and dedicates his efforts in philanthropic endeavours such as climate c...