Sara Blakely: Spanx a billion, The Independent

How Sara Blakely Transferred The Pantyhose Idea To $1 Billion, by Ahmed Aqel, ILLUMINATION

How to Build A Billion-Dollar DTC Brand: The Story of Spanx - Empire Flippers

How did Sara Blakely become a billionaire? - Quora

Spanx May Sell Itself, and Private Equity Is Interested - The New York Times

Promise Less, Profit More

Spanx and the billion dollar brain waves that brought their inventors a mint - Mirror Online

Oprah Winfrey and Reese Witherspoon Invest in Spanx - The New York

Who is Spanx CEO Sara Blakely and what is her net worth?

Persistence is Key: How Sara Blakely Made a Billion Dollars Helping Women Feel Comfortable With Spanx