--The Business Ethics Field Guide, by Brad Agle, Aaron Miller, and Bill O'Rourke
--The Oxford Dictionary and Thesaurus, American Edition
--Serious Creativity, by Edward De Bono
--Successful Writing at Work, by Philip C. Kolin
--Philosophy, by Stephen Law, with special attention to the sections on Aristotle and his thoughts on ethics
--Thinking for Yourself, Developing Critical Thinking Skills Through Writing, by Marlys, Mayfield
--Genius, by Harold Bloom?
--W.O.W. Writers on Writing, by Jon Winokur