By A Mystery Man Writer
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
Who is Spanx CEO Sara Blakely and How Much is Her Company Worth?
Sara Blakely Net Worth
Spanx to Sell Majority Stake to Blackstone (BX) in $1.2 Billion
How hating pantyhose in summer helped make Spanx founder Sara
Oprah Winfrey, Reese Witherspoon, Bumble founder invest in Spanx
Spanx Founder Sara Blakely Reflects on Her 'Unusual' Business
Blackstone buys majority stake in Buckhead-based Spanx - Rough
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Atlanta's Sara Blakely sells majority of Spanx to investment firm
Oprah Winfrey and Reese Witherspoon Invest in Spanx - The New York