Vicki Robin is a renowned innovator, writer, and speaker. In addition to coauthoring the bestselling Your Money or Your Life, Robin has been at the forefront of the sustainable living movement. She has received awards from Co-Op America and Sustainable Northwest and was profiled in Utne Magazine's book Visionaries: People and Ideas to Change Your Life. She is also the author of Blessing the Hands That Feed Us: What Eating Closer to Home Can Teach Us About Food, Community and Our Place on Earth. She lives on Whidbey Island in Washington.

Joe Dominguez (1938-1997) was a successful financial analyst on Wall Street before retiring at the age of thirty-one by following the nine-step program he formulated for himself. He taught this formula for many years, and preserved it for future generations in Your Money or Your Life. From 1969 on, he was a full-time volunteer and donated all proceeds from his teaching to transformational projects.

Peter Adeney, better known as Mr. Money Mustache, is an influential financial blogger who retired financially independent shortly after turning thirty, and now writes about how to live a frugal life of leisure.