Richard Wolff is an economist who has studied class issues for more than 40 years. In this animation and audio presentation, Wolff explains what class is all about and applies that understanding to the foreclosure crisis of 2007--2011. He argues that class concerns the "way our society splits up the output (and) leaves those who get the profits in the position of deciding and figuring out what to do with them... We all live with the results of what a really tiny minority in our society decides to do with the profits everybody produces." As you watch and listen, consider what we know from research about disease and illness patterns among groups with lower income, more stress, and less control of their lives. Consider how investment decisions in neighborhoods, over transportation, school facilities, parks, location of grocery stores, quality of affordable housing, etc. influenced by powerful interests, affect the quality of life for large segments of the population.