Martin Gardner Polymath

A writer, Gardner’s specialty was math, and he excelled at having fun with it.

From This is True for 23 May 2010

H. Harrison Hurt Safety engineer

Hurt was a fascinating expert, explaining everything from how (and why) airplanes fly, to motorcycle safety.

From This is True for 6 December 2009

Irving R. Levine Newsman

Levine was known for his lucid explanations of economics that average people could understand

From This is True for 29 March 2009

Donald E. Westlake The prolific

He used at least 10 pen names in addition to his own, since people had a hard time believing one person could be so prolific.

From This is True for 28 December 2008