This document profiles 5 famous entrepreneurs: 1) Maria das Graças Silva Foster, the first woman CEO of a major oil company, Petrobras, in Brazil. 2) Herb Kelleher, founder and former CEO of Southwest Airlines, which pioneered low-cost air travel. 3) Nagavara Ramarao Narayana Murthy, co-founder of Infosys, a global consulting and outsourcing company based in India. 4) Samuel Moore Walton, founder of retail giant Walmart, which grew to be the world's largest company. 5) Muhammad Yunus, founder of Grameen Bank in Bangladesh who pioneered microcredit and microfinance concepts and won the Nobel Peace Prize