Ilana Redstone is a sociology professor at the University of Illinois. She has a joint PhD from the University of Pennsylvania (2005) in Sociology and Demography. Redstone has been teaching and writing on topics related to critical thinking for years. In her co-authored book, Unassailable Ideas: How Unwritten Rules and Social Media Shape Discourse in American Higher Education, published in Fall 2020 by Oxford University Press, she and her co-author examine the implications of the trend on campus to operate under a narrowly prescribed set of beliefs—beliefs that are particularly problematic precisely because they go unexamined. Redstone is also the author of "The Certainty Trap."