About Me

Cathy O’Neil

I’m a writer, a bluegrass fiddler, and an algorithmic auditor. I live in Cambridge, MA.

Algorithmic Auditing Query

For questions about my work auditing algorithms, please visit ORCAA’s webpage.

Interview or Review Request

If you would like to interview me or review the Shame Machine or Weapons of Math Destruction, please contact my publicist Sarah Breivogel at sbreivogel@penguinrandomhouse.com.

Literary Rights Inquiry

If you have a book rights inquiry, please contact Jay Mandel at jman@wmeentertainment.com.

Speaking Inquiry

If you’d like to invite me to speak, please email Tiffany Vizcarra at tiffanyV@harrywalker.com or use this form.


Cathy O’Neil earned a Ph.D. in math from Harvard and worked as a math professor at Barnard College before switching over to the private sector, working as a quant for the hedge fund D.E. Shaw and as a data scientist in the New York start-up scene. She is a regular contributor to Bloomberg Opinion and in 2016 wrote the book Weapons of Math Destruction: how big data increases inequality and threatens democracy. She is the CEO of ORCAA, an algorithmic auditing company, is a member of the Public Interest Tech Lab at the Harvard Kennedy School. Her new book The Shame Machine: who profits in the new age of humiliation came out in March 2022.