Last seen in:
- New York Times - Feb 5 2020
- Wall Street Journal - Jul 6 2019 - The Best Teacher
- The Washington Post - Dec 7 2018
- New York Times - Jun 7 2018
- New York Times - Oct 4 2016
- New York Times - Aug 22 2016
- The Washington Post - Feb 15 2016
- New York Times - Dec 20 2015
- New York Times - Mar 27 2012
- New York Times - Sep 21 2011