All aspiring billionaires should study the business case of Sara Blakely and her product, Spanx. She's one of the best examples of using necessity
Sara Blakely Regains Billionaire Status
How Sara Blakely Turned $5000 Into A Billion Dollar Spanx Fortune
How Sara Blakely Turned $5000 Into A Billion Dollar Spanx Fortune
Blackstone Buying Majority Stake in Spanx - WSJ
Spanx Founder Sara Blakely's 5 Keys To Building Lifelong Success
Spanx CEO, Sara Blakely, gives each employee $10k, first class
Blackstone Snags Spanx Majority Ownership
Blackstone buying majority stake in Spanx
Spanx sells majority stake to Blackstone - Bizwomen
Here Are The Most Expensive Neiman Marcus Fantasy Gifts This Year
Sara Blakely's Net Worth: Spanx Founder Regains Billionaire Status
Spanx Founder Sara Blakely Gifts Her Employees $10,000 Each And
Here Are The Most Expensive Neiman Marcus Fantasy Gifts This Year
How Sara Blakely Turned $5000 Into A Billion Dollar Spanx Fortune
How did Sara Blakely become a billionaire? - Quora