I provide training and advisory services in business analytics and data visualization. For over a decade, I held leadership positions on data teams at Vimeo, SiriusXM Radio, [X+1], and American Express. I direct the Applied Analytics program at Columbia University, and write the Statbusters column in The Daily Beast, with Columbia professor Andrew Gelman.

I am author of two books, Numbers Rule Your World: The Hidden Influence of Probability and Statistics on Everything You Do, and Numbersense: How to Use Big Data to Your Advantage, both published by McGraw-Hill. Numbers Rule Your World has been translated into five languages.

I am also creator of two popular blogs. Since 2005, I have written dataviz criticism at my pioneering blog, Junk Charts. I also discuss how data, algorithms and software are transforming our society in my book blog, Big Data, Plainly Spoken.

I speak frequently at industry conferences on topics related to Big Data, building data teams, statistical thinking in daily life, communicating data analyses, and numbersense.

My writing has appeared in many publications, including Harvard Business Review, FiveThirtyEight, The Daily Beast, American Scientist, and Significance. I have also been cited by New York Times, Financial Times, Wired, and others.

I teach business analytics and data visualization at Columbia University, and run workshops for corporations and organizations. I have also taught at New York University for over 10 years.

I hold an MBA from Harvard Business School, and degrees in engineering and statistics from Princeton and Cambridge Universities.

I am based in New York City.