Parker J. Palmer, “Now I Become Myself,” an excerpt from Let Your Life Speak: Listening to the Voice of Vocation posted in Yes! Magazine, March 31, 2001.

"Why the Rise of the Purpose Economy Will Change How We Work Forever," by Mark Salenga, January 1, 2018 on the TBD website.

Aaron Hurst, The Purpose Economy: How to Create Purpose in Your Work (Elevate, 2014).

Studs Terkel, Working: People Talk about What They Do All Day and How They Feel about What They Do (New York: The New Press, 1997).