The Wall Street Journal, July 2011
Written by Saabria Chaudhuri
The Wall Street Journal, June 2011
Written by Carl Bialik
Touchpoint: The Journal of Service Design, Vol. 3 No. 1, May 2011
Written by Sylvia Harris and Chelsea Mauldin
USA Philatelic: Beyond the Perf, Issue 10, December 2009
Presented by the United States Postal Service
The New York Times, May 23, 2009
Written by David Gibson, Carla Hall, and Sylvia Harris