book by Steven Heller

The New York Times article (September 26, 2006)

The New York Times article (July 20, 2011)

The New York Times article (February 18, 2009)

The New York Times article (January 24, 2010)

The New York Times article (September 7, 2006)

The New York Times article (November 2, 2009)

The New York Times article (December 24, 2007)

The New York Times article (March 7, 2011)

The New York Times article (December 8, 2011)

The New York Times article (August 24, 2006)

The New York Times article (February 12, 2007)

The New York Times article (November 28, 2008)

The New York Times article (February 11, 2007)

The New York Times article (July 23, 2009)

The New York Times article (March 19, 2007)

The New York Times article (August 8, 2013)

The New York Times article (April 20, 2011)

The New York Times article (October 26, 2008)

The New York Times article (June 16, 2007)

The New York Times article (December 14, 2008)

The New York Times article (February 28, 2009)

The New York Times article (January 4, 2009)

The New York Times article (July 7, 2006)

The New York Times article (April 18, 2006)

The New York Times article (January 4, 2012)

The New York Times article (January 20, 2009)

The New York Times article (January 1, 2012)

The New York Times article (September 12, 2006)

The New York Times article (May 22, 2014)

The New York Times article (July 24, 2006)

book edition published in 2015