My original area of expertise is social psychology, with specialty in social influence processes and social cognition. For the past many years I have been researching and writing about commercialism in education, and policy related to it. I co-author the annual report on schoolhouse commercialism for the National Education Policy Center's Commercialism in Education Research Unit, and recently published a book (with Alex Molnar) on the topic, "Sold Out: How Marketing in School Threatens Children's Well-Being and Undermines their Education."